FR2626392A1 - Identification card which cannot be falsified, with patterns in relief, and method of making it - Google Patents

Identification card which cannot be falsified, with patterns in relief, and method of making it Download PDF

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Publication number
FR2626392A1
FR2626392A1 FR8800857A FR8800857A FR2626392A1 FR 2626392 A1 FR2626392 A1 FR 2626392A1 FR 8800857 A FR8800857 A FR 8800857A FR 8800857 A FR8800857 A FR 8800857A FR 2626392 A1 FR2626392 A1 FR 2626392A1
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France
Prior art keywords
card
film
relief
identification information
patterns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8800857A
Other languages
French (fr)
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FR2626392B1 (en
Inventor
Jean-Jacques Attias
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADVANCED CARDS SYSTEMS
Original Assignee
ADVANCED CARDS SYSTEMS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ADVANCED CARDS SYSTEMS filed Critical ADVANCED CARDS SYSTEMS
Priority to FR8800857A priority Critical patent/FR2626392B1/en
Publication of FR2626392A1 publication Critical patent/FR2626392A1/en
Application granted granted Critical
Publication of FR2626392B1 publication Critical patent/FR2626392B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23—Identity cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
    • G06K19/06046—Constructional details
    • B42D2033/24—
    • B42D2033/30—
    • B42D2035/06—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

Identification card 1 and method of making it. The card 1 possesses patterns in relief 3, 4, 5 covered over by a transparent film 12 which moulds to their shape while covering over identification information 7. Falsification of the card requires the total removal of the film 12 which cannot then be perfectly replaced. Application to chip card access systems 2.

Description

CARTE D'IDENTIFICATION INFALSIFIABLE AVEC DES MOTIFS EN RELIEF
ET PROCEDE D'OBTENTION
DESCRIPTION
L'invention concerne une carte d'identification infalsifiable portant des motifs en relief, et son procédé d'obtention. IL peut s'agir d'une carte semblable par son matériau et son format à une carte bancaire et notamment une carte à laquelle est incorpore une puce électronique.INFALSIFIABLE IDENTIFICATION CARD WITH RELIEF PATTERNS
AND PROCESS FOR OBTAINING
DESCRIPTION
The invention relates to a tamper-proof identification card bearing patterns in relief, and its method of obtaining. It can be a card similar in material and format to a bank card and in particular a card which incorporates an electronic chip.

De telles cartes constituent notamment la clé d'installation d'accés à fonctionnement ertiérement automatique. Such cards are in particular the key to installing access to fully automatic operation.

Pour permettre de vérifier qu'elles sont entre les mains de leur propriétaire Légitime, on a eu L'idée de graver ou d'installer des informations d'identification ou de personnaLisation sur leur surface, par exemple y creuser un puits qui reçoit une photographie. Meme avec Les meilleures colles, il est cependant reLativement facile d'ôter La photographie et la remplacer, falsifiant ainsi la carte. Il est tout aussi facile de détruire et de remplacer des informations de personnaLisation obtenues par d'autres procédés, tels les Logos, dessins et inscriptions obtenus par sérigraphie, tampographie ou impressions à chaud.To make it possible to verify that they are in the hands of their legitimate owner, we had the idea of engraving or installing identification or personalization information on their surface, for example digging a well there which receives a photograph . Even with the best adhesives, however, it is relatively easy to remove and replace the photograph, thereby falsifying the card. It is just as easy to destroy and replace personalization information obtained by other processes, such as Logos, drawings and inscriptions obtained by screen printing, pad printing or hot printing.

L'objet de l'invention est donc une carte dont la falsification, par enlèvement des informations d'identification et remplacement par d'autres informations, soit impossible sans détériorer la carte de manière immédiatement visible. Ce but est atteint en recouvrant la surface portant Les informations d'identification par une pellicule transparente qui y adhère, la carte étant par ailleurs munie de motifs en relief qui peuvent ou non correspondre à des informations d'identification. The object of the invention is therefore a card whose falsification, by removing identification information and replacing with other information, is impossible without damaging the card in an immediately visible manner. This object is achieved by covering the surface carrying the identification information with a transparent film which adheres thereto, the card being moreover provided with raised patterns which may or may not correspond to identification information.

L'invention concerne également un procédé d'obtention d'une telle carte dans le cas où les informations d'identification sont apposées par Le destinataire lui-même après avoir acheté la carte.  The invention also relates to a method of obtaining such a card in the case where the identification information is affixed by the recipient himself after purchasing the card.

Un intérêt accessoire de l'invention est que La pellicule protège les informations d'identification souvent fragiles. An accessory interest of the invention is that the film protects the often fragile identification information.

L'invention concerne plus précisément une carte munie de motifs en relief dont une face porte des informations d'identification, caractérisée en ce que ladite face est recouverte d'une pellicule transparente épousant Le relief. Ces motifs en relief peuvent comprendre des impressions bombées ou en creux sur la surface. The invention relates more precisely to a card provided with raised patterns, one side of which carries identification information, characterized in that said face is covered with a transparent film conforming to the relief. These relief patterns may include domed or recessed prints on the surface.

On va maintenant décrire l'invention plus en détait à
L'aide des figures suivantes annexées à titre illustratif et non limitatif
- la figure 1 est une vue de face de La carte,
- La figure 2 est une vue suivant La coupe II-II de La figure 1, et
- la figure 3 est une vue d'une carte selon l'invention vendue avant insertion d'une photographie par Le destinataire.We will now describe the invention in more detail.
The aid of the following figures annexed by way of illustration and not limitation
FIG. 1 is a front view of the card,
FIG. 2 is a view along section II-II of FIG. 1, and
- Figure 3 is a view of a card according to the invention sold before insertion of a photograph by the recipient.

La carte est référencée globalement par 1. ELLe est de forme rectangulaire de quelques centimètres de côté et peut comprendre une puce électronique 2 dans un coin. Cette carte peut être utilisée notamment pour permettre L'accès à des installations contrôlées ; même si le système d'accès est entièrement automatique et commandé par la puce 2, des informations d'identification sont utiles car elles permettent de vérifier occasionnellement l'identité du possesseur de la carte. The card is generally referenced by 1. IT is rectangular in shape, a few centimeters aside and may include an electronic chip 2 in a corner. This card can be used in particular to allow access to controlled installations; even if the access system is fully automatic and controlled by the chip 2, identification information is useful because it allows occasional verification of the identity of the card holder.

La carte 1 est pourvue de motifs en relief 3, en impressions en relief bombé 4 ou en creux 5, qui peuvent être de forme quelconque mais consistent souvent en des inscriptions (période de validité, service auquel appartient le propriétaire) qui fournissent elles-mêmes une identification au moins partielle. La carte 1 peut être également pourvue d'informations d'identification non en relief telles que des impressions à l'encre, mais une idée attrayante consiste à y insérer une photographie 7 du propriétaire dans un puits 6. The card 1 is provided with relief patterns 3, in relief relief prints 4 or intaglio 5, which can be of any shape but often consist of inscriptions (period of validity, service to which the owner belongs) which provide themselves at least partial identification. The card 1 can also be provided with identification information not in relief such as ink prints, but an attractive idea consists in inserting there a photograph 7 of the owner in a well 6.

On se reporte maintenant à la figure 2. On constate que
La carte 1 comprend essentiellement une couche de plastique semirigide 11 et, selon l'invention, une pellicule transparente 12 recouvrant sa face recto 16, représente figure 1, et qui porte les informations d'identification, ici la photographie 7. On constate que la pellicule 12 épouse les bombements 4 et les creux 5, épouse également la forme du puits 6 et recouvre la photographie 7.We now refer to Figure 2. We see that
The card 1 essentially comprises a layer of semi-rigid plastic 11 and, according to the invention, a transparent film 12 covering its front face 16, represents FIG. 1, and which carries the identification information, here photograph 7. It can be seen that the film 12 follows the bulges 4 and the depressions 5, also follows the shape of the well 6 and covers the photograph 7.

Dans le cas d'une carte à puce, ta pellicule 12 isolante ne doit cependant pas recouvrir cette dernière. C'est pourquoi La pellicule 12 présente à cet endroit une fenetre aux dimensicns de La puce 2, référencée par 13 sur la figure 1. In the case of a smart card, your insulating film 12 must not however cover the latter. This is why the film 12 has a window at this point with the dimensions of the chip 2, referenced by 13 in FIG. 1.

Parmi les pellicules envisageables, l'inventeur a retenu un poLyester transparent n0 715 de la raroue Fascal et qui a une épaisseur de 0,38 mm. Ce matériau présente une résistance satisfaisante à L'usure et aux rayures. La pellicule 12 est collée sur la face recto 16 à l'aide d'une colle polymérisable à durcissement définitif. Among the possible films, the inventor selected a transparent poLyester No. 715 from the Fascal rarou, which is 0.38 mm thick. This material has satisfactory resistance to wear and scratches. The film 12 is bonded to the front face 16 using a polymerizable adhesive with definitive hardening.

Les impressions en relief bombé ou en creux sont des déformations pLastiques s'exerçant sur toute L'épaisseur de la carte 1. De façon avantageuse, les bombements 4 sont plus hauts que l'épaisseur de La carte I pour que la face verso 14 de la carte 1, opposée à La pellicule 12, possède à cet endroit des dépressions 15 qui s'étendent jusqu'au-delà du niveau ordinaire de la face recto 16. The embossed or hollow relief prints are plastic deformations exerted over the entire thickness of the card 1. Advantageously, the bulges 4 are higher than the thickness of the card I so that the back side 14 of the card 1, opposite to the film 12, has at this location depressions 15 which extend beyond the ordinary level of the front face 16.

Les impressions en relief 3 portent éventuellement des surcharges à l'encre 17. De façon classique, les surcharges 17 au fond des creux 5 sont déposées lors de L'estampage de la carte 1, et celles sur les bombements 4 sont déposées à chaud dans un appareil appelé colorante et qui comprend en particulier un ruban encreur venant en contact avec les bombements 4. The relief prints 3 optionally carry overloads with ink 17. Conventionally, the overloads 17 at the bottom of the recesses 5 are deposited during the stamping of the card 1, and those on the bulges 4 are deposited hot in a device called a dye and which in particular comprises an ink ribbon coming into contact with the bulges 4.

Une partie 20 des impressions en relief 3 peut empiéter sur le puits 6 et la photographie 7. A portion 20 of the relief prints 3 can encroach on the well 6 and the photograph 7.

Il faut que la pellicule 12 soit déposée sur la face recto 16 avant que les motifs en relief 3 aient été estampés, car sinon, on ne pourrait pas lui faire épouser exactement leur forme. Il faut par contre coller la pellicule 12 quand La photo 7 a été installée et collée dans le puits 6, ou généralement quand les informations d'identification superficielles ont été apposées. Dans la pratique, on procède suivant la figure 3 : la carte 1 est vendue à l'utilisateur avec une partie de la pellicule 12, à gauche sur le dessin, déjà collée. Par contre, la partie droite, qui comprend te puits 6 encore vide, correspond à une partie encore battante qui est raidie par une feuille de papier semi-rigide 19 qui protège la face de La pellicule 12 à coller sur la carte 1. The film 12 must be deposited on the front side 16 before the relief patterns 3 have been stamped, because otherwise, it could not be made to match their exact shape. On the other hand, the film 12 must be pasted when Photo 7 has been installed and pasted in well 6, or generally when the surface identification information has been affixed. In practice, we proceed according to FIG. 3: the card 1 is sold to the user with part of the film 12, on the left in the drawing, already glued. On the other hand, the straight part, which comprises the still empty well 6, corresponds to a still beating part which is stiffened by a sheet of semi-rigid paper 19 which protects the face of the film 12 to be stuck on the card 1.

L'utilisateur installe ensuite La photographie 7, enlève le papier 19 et applique le reste de La pellicule 12 sur la carte 1 en prenant scin de Lui faire suivre exactement Les parois du puits 6. Après quelques temps, Le durcissement de la colle est définitif, si bien que la pellicule 12 ne peut plus être arrachée sans dommage. The user then installs the photograph 7, removes the paper 19 and applies the rest of the film 12 to the card 1, taking care to make it follow exactly the walls of the well 6. After some time, the hardening of the glue is final. , so that the film 12 can no longer be torn off without damage.

Les motifs en relief 3 sont estampés après application de la pellicule 12. The relief patterns 3 are stamped after applying the film 12.

On va maintenant passer en revue diverses idées de la falsification de la carte 1 et examiner pourquoi ces idées échouent. Le falsificateur peut vouloir simplement remplacer la photographie 7 après avoir ôté la pellicule 12 qui la recouvre. We will now review various ideas of the falsification of Card 1 and examine why these ideas fail. The falsifier may simply want to replace the photograph 7 after removing the film 12 which covers it.

Mais l'arrachement local de la pellicule 12 propose des déformations non homogènes et des ruptures partielles qui restent bien visibles.However, the local tearing of the film 12 offers non-homogeneous deformations and partial ruptures which remain clearly visible.

Une fraiseuse de précision peut permettre de découper proprement la pellicule 12 dans le puits 6, mais la nouvelle photographie qui sera ensuite installée devra être recouverte d'une nouvelle pellicule pour que La falsification passe inaperçue. A precision milling machine can make it possible to cut the film 12 properly in the well 6, but the new photograph which will then be installed will have to be covered with a new film so that the falsification goes unnoticed.

Il sera cependant impossible de faire raccorder exactement la nouvelle pellicule avec le contour de frai sage de la pellicule 12.However, it will be impossible to connect the new film exactly with the milling edge of film 12.

Le falsificateur devra donc supprimer la totalité de la pellicule 12 et la remplacer par une pellicule neuve, mais il lui sera alors nécessaire d'entamer la face recto 16 de la carte 1, de la rayer et d'endommager les motifs en relief 3. The falsifier will therefore have to remove all of the film 12 and replace it with a new film, but it will then be necessary for it to open the front face 16 of the card 1, to scratch it and to damage the relief patterns 3.

Avec des motifs en creux 5, il est impossible de faire épouser correctement à une nouvelle pellicule la forme des creux : des zones de décollement partiel de la nouvelle pellicule seront inévitables et se verront immédiatement. With intaglio patterns 5, it is impossible to correctly match a new film to the shape of the recesses: areas of partial detachment of the new film will be inevitable and will be seen immediately.

Avec des bombements 4, le même problème se posera, surtout quand ces bombements 4 sont resserrés et séparés par des creux intermédiaires 18 de faible largeur ; de plus, si on arase excessivement Les bombements 4 Lors de La suppression de la pellicule 12, Les dépressions 15 seront atteintes et apparaîtront sur la face recto 16. La falsification sera donc tout aussi visible. With bulges 4, the same problem will arise, especially when these bulges 4 are tightened and separated by intermediate recesses 18 of small width; moreover, if the bulges are excessively leveled 4 When the film 12 is removed, the depressions 15 will be reached and will appear on the front side 16. The falsification will therefore be just as visible.

La protection est plus complète encore si les motifs en relief 3 comprennent eux-mêmes des inscriptions ou des dessins d'identification, ou s'ils se superposent aux informations d'identification, comme c'est le cas pour la partie 20. Protection is even more complete if the relief patterns 3 themselves include inscriptions or identification drawings, or if they overlap with the identification information, as is the case for part 20.

Sien entendu, la carte peut comprendre des motifs d'identification et/ou en relief arrangés différemment. La pellicule 12 présente L'avantage supplémentaire de protéger la photographie 7 et les informations imprimées qu'elle recouvre contre les rayures, L'humidité et les décollements.  It goes without saying that the card may include identification and / or relief patterns arranged differently. The film 12 has the additional advantage of protecting the photograph 7 and the printed information which it covers against scratches, humidity and detachments.

Claims (9)

REVENDICATIONS 1. Carte (1) munie de motifs en relief (3) dont une face (16) comprend des informations d'identification (7), caractérisée en ce que ladite face est recouverte d'une pellicule transparente (12) épousant le relief. 1. Card (1) provided with relief patterns (3), one face (16) of which includes identification information (7), characterized in that said face is covered with a transparent film (12) conforming to the relief. 2. Carte selon la revendication 1, caractérisée en ce que tes informations d'identification comprennent une photographie (7) installée dans un puits (6) creusé dans Ladite face (16) et que la pellicule (12) recouvre la photographie (7). 2. Card according to claim 1, characterized in that your identification information includes a photograph (7) installed in a well (6) dug in said face (16) and that the film (12) covers the photograph (7) . 3. Carte selon L'une quelconque des revendications 1 ou 2, caractérisée en ce que les motifs en relief comprennent des impressions produites par déformation plastique de la carte et formant des creux (5) sur Ladite face (16). 3. Card according to any one of claims 1 or 2, characterized in that the relief patterns include impressions produced by plastic deformation of the card and forming recesses (5) on said face (16). 4. Carte selon L'une quelconque des revendications 1 à 3, caractérisée en ce que les motifs en relief (3) comprennent des impressions produites par déformation plastique de la carte et formant des bombements (4) sur ladite face (16). 4. Card according to any one of claims 1 to 3, characterized in that the relief patterns (3) include impressions produced by plastic deformation of the card and forming bulges (4) on said face (16). 5. Carte selon la revendication 4, caractérisée en ce que les bombements (4) ont une hauteur plus grande que l'épaisseur de La carte (1). 5. Card according to claim 4, characterized in that the bulges (4) have a height greater than the thickness of the card (1). 6. Carte selon L'une quelconque des revendications 3 à 5, caractérisse en ce que les motifs en relief (3) sont recouverts d'encre (17). 6. Card according to any one of claims 3 to 5, characterized in that the relief patterns (3) are covered with ink (17). 7. Carte selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle contient une puce électronique (2). 7. Card according to any one of the preceding claims, characterized in that it contains an electronic chip (2). 8. Carte selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une partie (20) des motifs en relief (3) empiète sur les informations d'identification (7). 8. Card according to any one of the preceding claims, characterized in that a part (20) of the relief patterns (3) encroaches on the identification information (7). 9. Procédé d'obtention d'une carte (1) selon L'une quelconque des revendications 1 à 8, caractérisé en ce qu'il consiste à successivement appliquer la pellicule (12) sur une partie de la carte (1), installer des informations d'identification (7) sur l'autre partie, appliquer la pellicule (12) sur cette autre partie et enfin créer des motifs en relief (3) sur la carte (1).  9. A method of obtaining a card (1) according to any one of claims 1 to 8, characterized in that it consists in successively applying the film (12) on a part of the card (1), installing identification information (7) on the other part, apply the film (12) on this other part and finally create relief patterns (3) on the card (1).
FR8800857A 1988-01-26 1988-01-26 INFALSIFIABLE IDENTIFICATION CARD WITH RELIEF PATTERNS AND PROCESS FOR OBTAINING Expired - Fee Related FR2626392B1 (en)

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Application Number Priority Date Filing Date Title
FR8800857A FR2626392B1 (en) 1988-01-26 1988-01-26 INFALSIFIABLE IDENTIFICATION CARD WITH RELIEF PATTERNS AND PROCESS FOR OBTAINING

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Application Number Priority Date Filing Date Title
FR8800857A FR2626392B1 (en) 1988-01-26 1988-01-26 INFALSIFIABLE IDENTIFICATION CARD WITH RELIEF PATTERNS AND PROCESS FOR OBTAINING

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FR2626392A1 true FR2626392A1 (en) 1989-07-28
FR2626392B1 FR2626392B1 (en) 1990-07-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703808A1 (en) * 1993-04-08 1994-10-14 Gemplus Card Int Process for authenticating a microchip support and support allowing such authentication
NL1005313C2 (en) * 1997-02-19 1998-08-20 Iai Bv Irreversibly deformable weakening pattern against fraud resistant document.
WO2009056228A3 (en) * 2007-10-30 2009-07-16 Ovd Kinegram Ag Security document and method for the production thereof
CN105015216A (en) * 2014-04-29 2015-11-04 中钞特种防伪科技有限公司 Optical anti-fake element and method for preparing optical anti-fake element

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318554A (en) * 1979-09-10 1982-03-09 Microseal Corporation Combined medical and/or informational identification credit card
EP0088941A1 (en) * 1982-03-13 1983-09-21 Agfa-Gevaert AG Information carrier protected against falsification
EP0113131A2 (en) * 1982-12-31 1984-07-11 GAO Gesellschaft für Automation und Organisation mbH Identity card
EP0145474A2 (en) * 1983-12-13 1985-06-19 Computer Identification Systems, Inc. Protectively covered identification card

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318554A (en) * 1979-09-10 1982-03-09 Microseal Corporation Combined medical and/or informational identification credit card
EP0088941A1 (en) * 1982-03-13 1983-09-21 Agfa-Gevaert AG Information carrier protected against falsification
EP0113131A2 (en) * 1982-12-31 1984-07-11 GAO Gesellschaft für Automation und Organisation mbH Identity card
EP0145474A2 (en) * 1983-12-13 1985-06-19 Computer Identification Systems, Inc. Protectively covered identification card

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703808A1 (en) * 1993-04-08 1994-10-14 Gemplus Card Int Process for authenticating a microchip support and support allowing such authentication
NL1005313C2 (en) * 1997-02-19 1998-08-20 Iai Bv Irreversibly deformable weakening pattern against fraud resistant document.
WO1998036916A1 (en) * 1997-02-19 1998-08-27 Industrial Automation Integrators (Iai) B.V. Document made fraud-proof by an irreversibly distortable weakening pattern
US6302444B1 (en) 1997-02-19 2001-10-16 Industrial Automation Integrators (I.A.I.) B.V. Document made fraud-proof by an irreversibly distortable weakening pattern
CN1098775C (en) * 1997-02-19 2003-01-15 工业自动化仪表有限公司 Document made fraud-proof by irreversibly distortable weakening pattern
WO2009056228A3 (en) * 2007-10-30 2009-07-16 Ovd Kinegram Ag Security document and method for the production thereof
CN105015216A (en) * 2014-04-29 2015-11-04 中钞特种防伪科技有限公司 Optical anti-fake element and method for preparing optical anti-fake element
CN105015216B (en) * 2014-04-29 2017-06-16 中钞特种防伪科技有限公司 A kind of optical anti-counterfeit element and the method for preparing optical anti-counterfeit element

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