EP0638433B1 - Ink ribbon support for thermal transfer printer - Google Patents
Ink ribbon support for thermal transfer printer Download PDFInfo
- Publication number
- EP0638433B1 EP0638433B1 EP94401788A EP94401788A EP0638433B1 EP 0638433 B1 EP0638433 B1 EP 0638433B1 EP 94401788 A EP94401788 A EP 94401788A EP 94401788 A EP94401788 A EP 94401788A EP 0638433 B1 EP0638433 B1 EP 0638433B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribbon
- cassette
- paper
- housings
- housing
- 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.)
- Expired - Lifetime
Links
- 238000007639 printing Methods 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010023 transfer printing Methods 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 description 2
- 238000007651 thermal printing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
- B41J17/32—Detachable carriers or holders for impression-transfer material mechanism
Definitions
- the field of the invention is that of printers, peripheral printers of central processing units such as printers integrated into printing devices, such as fax machines.
- Thermal printing printers provided with a head of resistive heating elements, use as printing medium either thermal paper, in rolls, or plain paper in sheets.
- the field of the invention is, more particularly, that of thermal printing printers using sheets of plain paper, that is to say thermal transfer printing printers.
- the printing is carried out, under the action of the print head, by transfer of a hot-melt ink previously coated on a support film, the whole forming a printing ribbon.
- the invention relates to these printing ink ribbons, therefore of a width at least equal to that of the sheets intended to be printed.
- EP-A-0 488 291 teaches a cassette for a thermal transfer printing ribbon arranged to be placed in a printer comprising a print head in front of which sheets of paper are intended to run, and comprising a receiving housing of a supply reel, a housing for receiving a take-up reel, agency means for being driven in rotation and driving the take-up reel, a window being provided between the two housings and arranged to allow the cooperation of the print head and the ribbon extending between the two housings.
- the present invention aims to facilitate this separation.
- the invention relates to a cassette of the above type, characterized in that it comprises means (5R, 5A) for deflecting the path of the tape (2) between the two housings (3, 5; 103, 105), associated with the housing (5) of the take-up reel (6) in order, after printing, to facilitate the separation of the ribbon (2) and the sheets of paper (30).
- the cassette is in one piece.
- the window formed between the two housings is arranged to allow the cooperation of the ribbon and a support head.
- means for guiding sheets of paper are associated with each of the two housings.
- the housing of the take-up reel is associated with means for guiding sheets of paper and means for deflecting the path of the ribbon forming the baffle.
- the cassette of the invention can be symmetrical with respect to a median plane extending through the window.
- the means for driving the two coils in rotation are respectively arranged on two opposite sides of the cassette.
- the cassette shown in Figures 1 and 2 has a housing 1 containing a ribbon 2 for thermal transfer printing.
- the cassette is arranged to be placed in a printer, not entirely shown, which here belongs to a fax machine and comprises a line print head 21 in front of which sheets of paper 30 to be printed are intended to be scrolled.
- the cassette comprises a receiving housing 3 for a supply reel 4 of the tape 2, a receiving housing 5 for a receiving reel 6 and, in the receiving housing 5, a drive shaft 7 having coupling grooves in rotation with the take-up reel 6 and terminated by a pinion 8 making projection of the housing 1 containing the above elements.
- a motor with gear 22 of the printer meshes with the pinion 8 to drive it in rotation and likewise drive the take-up reel 6.
- a window 9 is formed between the two housings 3 and 5 and is here arranged to allow the cooperation of the print head 21 and ribbon 2 extending between the two housings 3 and 5.
- a support roller 23 of the printer is opposite to the print head 21 and presses the paper 30 and the ribbon 2 against the print head 21, while ensuring by friction the entrainment of the paper 30.
- a shaft 17 is here provided to support the supply reel 4, as well as a brake 10 opposing the rotation of the shaft 17.
- the ribbon 2 upstream of the print head 21 leaves the housing 3 while being guided, or deflected, by an extension 3R of the housing 3 extending towards the print head 21, while the ribbon 2 downstream of the print head 21 is guided, or deflected, by an extension 5R of the housing 5.
- the extensions 3R and 5R are arranged so that the upstream ribbon 2 is approximately straight, while the downstream ribbon 2 is guided approximately an edge of the housing 5 opposite to the extension 5R, up to a rounded edge 5A making it follow a baffled path from which it departs towards an edge adjacent to the extension 5R by forming a very approximately right angle.
- the ribbon 2 and the sheet 30 of printed paper remain glued between the print head 21 and the edge 5A, where they separate at a relatively large angle.
- the ribbon 2 is pulled by the action of the motor 22 and remains stretched by the effect of the brake 10, while the paper 30 is pushed by the roller 23. It is also possible to provide drive rollers to extract the paper 30 .
- the housings 3 and 5 respectively have two other extensions 3P and 5P ensuring the guiding of the paper 30, in inlet, towards the head 21 and, at the outlet, from the head 21.
- the extensions 3P and 5P are associated respectively with two guides 24 and 25 belonging to the same part of the printer and respectively arranged opposite the extensions 3P and 5P to constitute with them two guide channels, at the inlet and outlet of the paper 30.
- the cassette is, here, in one piece and the window 9 allows the print head 21 and the support roller 23 to occupy a position interposed between the two housings 3 and 5, for which they cooperate.
- the cassette shown in FIG. 3 has a general shape and elements similar to those shown in FIGS. 1 and 2, except that it has symmetry with respect to a median plane 140 extending through the window 109.
- elements similar to those of FIGS. 1 and 2 bear identical references, preceded by the hundred 1 and, where appropriate, by the tens 1, and they are not described again.
- the cassette of FIG. 3 carries two layers of ink allowing two passages in printing.
- the cassette comprises a second pinion 118 integral with the shaft 117, for rotating the reel 104 when, once the cassette has been turned over in the printer, the reel 104 occupies the previous position, shown therein, of the take-up reel 106 and is driven by the motor 122.
- the second pinion 118 is disposed on one side of the housing 101 opposite to that from which the pinion 108 projects, in order to occupy the place of the latter after turning the cassette over.
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
Description
Le domaine de l'invention est celui des imprimantes, des imprimantes périphériques d'unités centrales comme des imprimantes intégrées à des appareils d'impression, tels que des télécopieurs.The field of the invention is that of printers, peripheral printers of central processing units such as printers integrated into printing devices, such as fax machines.
On connaît principalement deux types d'imprimantes : les imprimantes à impression laser et les imprimantes à impression thermique. Le domaine de l'invention est celui de ces dernières imprimantes. Les imprimantes à impression thermique, pourvues d'une tête d'éléments résistifs chauffants, utilisent comme support d'impression soit du papier thermique, en rouleau, soit du papier ordinaire en feuilles.Two types of printers are mainly known: laser printers and thermal printers. The field of the invention is that of these latter printers. Thermal printing printers, provided with a head of resistive heating elements, use as printing medium either thermal paper, in rolls, or plain paper in sheets.
Le domaine de l'invention est, encore plus particulièrement, celui des imprimantes à impression thermique utilisant des feuilles de papier ordinaire, c'est-à-dire des imprimantes à impression par transfert thermique. L'impression s'effectue, sous l'action de la tête d'impression, par transfert d'une encre thermo-fusible préalablement couchée sur un film support, le tout formant un ruban d'impression. L'invention concerne ces rubans encreurs d'impression, par conséquent d'une largeur au moins égales à celle des feuilles destinées à être imprimées.The field of the invention is, more particularly, that of thermal printing printers using sheets of plain paper, that is to say thermal transfer printing printers. The printing is carried out, under the action of the print head, by transfer of a hot-melt ink previously coated on a support film, the whole forming a printing ribbon. The invention relates to these printing ink ribbons, therefore of a width at least equal to that of the sheets intended to be printed.
La mise en place de ces rubans dans une imprimante implique une manipulation lourde de précautions si on ne veut pas gaspiller de longueur tout en assurant une tension correcte des rubans.The installation of these ribbons in a printer involves a heavy handling of precautions if one does not want to waste length while ensuring a correct tension of the ribbons.
EP-A-0 488 291 enseigne une cassette pour ruban d'impression par transfert thermique agencée pour être mise en place dans une imprimante comprenant une tête d'impression devant laquelle des feuilles de papier sont destinées à défiler, et comprenant un logement de réception d'une bobine débitrice, un logement de réception d'une bobine réceptrice, des moyens agences pour être entraînés en rotation et entraîner la bobine réceptrice, une fenêtre étant ménagée entre les deux logements et agencée pour permettre la coopération de la tête d'impression et du ruban s'étendant entre les deux logements.EP-A-0 488 291 teaches a cassette for a thermal transfer printing ribbon arranged to be placed in a printer comprising a print head in front of which sheets of paper are intended to run, and comprising a receiving housing of a supply reel, a housing for receiving a take-up reel, agency means for being driven in rotation and driving the take-up reel, a window being provided between the two housings and arranged to allow the cooperation of the print head and the ribbon extending between the two housings.
Cependant, la séparation du ruban et des feuilles de papier en aval de la tête d'impression est mal maîtrisée et cela peut poser des problèmes.However, the separation of the ribbon and the sheets of paper downstream from the print head is poorly controlled and this can cause problems.
La présente invention vise à faciliter cette séparation. A cet effet, l'invention concerne une cassette du type ci-dessus, caractérisée par le fait qu'elle comporte des moyens (5R, 5A) de déviation de la trajectoire du ruban (2) entre les deux logements (3, 5 ; 103, 105), associés au logement (5) de la bobine réceptrice (6) pour, après impression, faciliter la séparation du ruban (2) et des feuilles de papier (30).The present invention aims to facilitate this separation. To this end, the invention relates to a cassette of the above type, characterized in that it comprises means (5R, 5A) for deflecting the path of the tape (2) between the two housings (3, 5; 103, 105), associated with the housing (5) of the take-up reel (6) in order, after printing, to facilitate the separation of the ribbon (2) and the sheets of paper (30).
Avantageusement, la cassette est monobloc.Advantageously, the cassette is in one piece.
Avantageusement encore, la fenêtre ménagée entre les deux logements est agencée pour permettre la coopération du ruban et d'une tête d'appui.Advantageously also, the window formed between the two housings is arranged to allow the cooperation of the ribbon and a support head.
Dans la forme de réalisation préférée de la cassette de l'invention, des moyens de guidage de feuilles de papier sont associés à chacun des deux logements.In the preferred embodiment of the cassette of the invention, means for guiding sheets of paper are associated with each of the two housings.
De préférence, au logement de la bobine réceptrice sont associés des moyens de guidage de feuilles de papier et des moyens de déviation de la trajectoire du ruban formant chicane.Preferably, the housing of the take-up reel is associated with means for guiding sheets of paper and means for deflecting the path of the ribbon forming the baffle.
La cassette de l'invention peut être symétrie par rapport à un plan médian s'étendant à travers la fenêtre.The cassette of the invention can be symmetrical with respect to a median plane extending through the window.
Dans ce cas, il peut être avantageux de prévoir des moyens agencés pour entraîner en rotation les bobines des deux logements. Il s'agit ici d'une cassette réversible dont naturellement une seule des deux bobines à la fois peut être effectivement entraînée par l'imprimante après retournement sur elle-même de la cassette, dont le ruban encreur supporte deux passages d'impression.In this case, it may be advantageous to provide means arranged to rotate the coils of the two housings. This is a reversible cassette, of which naturally only one of the two reels at a time can be effectively driven by the printer after the cassette is turned over on itself, the ink ribbon supporting two printing passages.
Dans ce cas toujours, et avantageusement, les moyens d'entraînement en rotation des deux bobines sont respectivement disposés sur deux côtés opposés de la cassette.Again in this case, and advantageously, the means for driving the two coils in rotation are respectively arranged on two opposite sides of the cassette.
L'invention sera mieux comprise à l'aide de la description suivante de la forme de réalisation préférée de la cassette de l'invention, en référence au dessin annexé, sur lequel :
- la figure 1 est une vue en coupe latérale de la cassette de l'invention,
- la figure 2 est une vue de dessus de la cassette selon la coupe AA de la figure 1 et
- la figure 3 est une vue de dessus en coupe d'une cassette symétrique réversible.
- FIG. 1 is a side sectional view of the cassette of the invention,
- FIG. 2 is a top view of the cassette according to section AA of FIG. 1 and
- Figure 3 is a top view in section of a reversible symmetrical cassette.
La cassette représentée sur les figures 1 et 2 comporte un boîtier 1 contenant un ruban 2 d'impression par transfert thermique. La cassette est agencée pour être mise dans une imprimante, non entièrement représentée, qui, ici, appartient à un télécopieur et comprend une tête d'impression par ligne 21 devant laquelle des feuilles de papier 30 à imprimer sont destinées à défiler. La cassette comprend un logement de réception 3 d'une bobine débitrice 4 du ruban 2, un logement de réception 5 d'une bobine réceptrice 6 et, dans le logement de réception 5, un arbre d'entraînement 7 comportant des rainures de couplage en rotation avec la bobine réceptrice 6 et terminé par un pignon 8 faisant saillie du boîtier 1 contenant les éléments ci-dessus. Un moteur avec engrenage 22 de l'imprimante engrène sur le pignon 8 pour l'entraîner en rotation et entraîner de même la bobine réceptrice 6. Une fenêtre 9 est ménagée entre les deux logements 3 et 5 et est ici agencée pour permettre la coopération de la tête d'impression 21 et du ruban 2 s'étendant entre les deux logements 3 et 5.The cassette shown in Figures 1 and 2 has a housing 1 containing a ribbon 2 for thermal transfer printing. The cassette is arranged to be placed in a printer, not entirely shown, which here belongs to a fax machine and comprises a
Un rouleau d'appui 23 de l'imprimante est opposé à la tête d'impression 21 et presse le papier 30 et le ruban 2 contre la tête d'impression 21, tout en assurant par friction l'entraînement du papier 30.A
Il est ici prévu un arbre 17 pour supporter la bobine débitrice 4, ainsi qu'un frein 10 s'opposant à la rotation de l'arbre 17.A
Le ruban 2 en amont de la tête d'impression 21 sort du logement 3 en étant guidé, ou dévié, par un prolongement 3R du logement 3 s'étendant vers la tête d'impression 21, tandis que le ruban 2 en aval de la tête d'impression 21 est guidé, ou dévié, par un prolongement 5R du logement 5. Dans cet exemple, les prolongements 3R et 5R sont agencés pour que le ruban 2 amont soit approximativement droit, alors que le ruban 2 aval est guidé vers approximativement un bord du logement 5 opposé au prolongement 5R, jusqu'à une arête arrondie 5A lui faisant suivre un trajet en chicane d'où il repart vers un bord voisin du prolongement 5R en formant un angle très approximativement droit. De ce fait, comme le montre la figure 1, le ruban 2 et la feuille 30 de papier imprimée restent collés entre la tête d'impression 21 et l'arête 5A, où ils se séparent selon un angle relativement grand. Le ruban 2 est tiré par l'action du moteur 22 et reste tendu par l'effet du frein 10, tandis que le papier 30 est poussé par le rouleau 23. Il peut aussi être prévu des galets d'entraînement pour extraire le papier 30.The ribbon 2 upstream of the
Les logements 3 et 5 présentent respectivement deux autres prolongements 3P et 5P assurant le guidage du papier 30, en entrée, vers la tête 21 et, en sortie, depuis la tête 21. Aux prolongements 3P et 5P sont respectivement associés deux guides 24 et 25 appartenant à une même pièce de l'imprimante et respectivement disposés en regard des prolongements 3P et 5P pour constituer avec eux deux canaux de guidage, en entrée et en sortie du papier 30.The
La cassette est, ici, monobloc et la fenêtre 9 permet à la tête d'impression 21 et au rouleau d'appui 23 d'occuper une position intercalée entre les deux logements 3 et 5, pour laquelle ils coopèrent.The cassette is, here, in one piece and the
Bien que cela ne paraisse guère économiquement réaliste, il aurait pu être prévu de munir la cassette d'un rouleau d'appui.Although this hardly seems economically realistic, provision could have been made to provide the cassette with a support roller.
La cassette représentée sur la figure 3 présente une forme générale et des éléments semblables à ceux représentés sur les figures 1 et 2, à ceci près qu'elle présente une symétrie par rapport à un plan médian 140 s'étendant à travers la fenêtre 109. De ce fait, les éléments semblables à ceux des figures 1 et 2 portent des références identiques, précédées de la centaine 1 et, le cas échéant, de la dizaine 1, et ils ne sont pas décrits à nouveau.The cassette shown in FIG. 3 has a general shape and elements similar to those shown in FIGS. 1 and 2, except that it has symmetry with respect to a
La cassette de la figure 3 porte deux couches d'encre permettant deux passages en impression. La cassette comporte un second pignon 118 solidaire de l'arbre 117, pour entraîner en rotation la bobine 104 lorsque, la cassette ayant été retournée dans l'imprimante, la bobine 104 y occupe la position précédente, représentée, de la bobine réceptrice 106 et est entraînée par le moteur 122. Le second pignon 118 est disposé sur un côté du boîtier 101 opposé à celui d'où fait saillie le pignon 108, afin d'occuper la place de ce dernier après retournement de la cassette.The cassette of FIG. 3 carries two layers of ink allowing two passages in printing. The cassette comprises a
Il aurait pu aussi être prévu, en remplacement des pignons 108 et 118, des arbres 107 et 117 qui soient creux et canelés et éventuellement symétriques par rapport au plan médian 140 et qui soient reçus sur deux broches de l'imprimante dont l'une aurait été motrice.It could also have been provided, in replacement of the
Claims (8)
- Cassette for a ribbon (2) for printing by thermal transfer arranged in order to be placed in a printer comprising a printing head (21) in front of which sheets of paper (30) are intended to travel, and comprising a housing (3; 103) for receiving a feed spool (4; 104), a housing (5; 105) for receiving a receiving spool (6; 106), means (8; 108) arranged in order to be driven in rotation and for driving the receiving spool (6; 106), a window (9; 109) being provided between the two housings (3, 5; 103, 105) and arranged to allow the cooperation of the printing head (21) and of the ribbon (2) extending between the two housings (3, 5; 103, 105), characterised by the fact that it comprises means (5R, 5A) for diverting the trajectory of the ribbon (2) between the two housings (3, 5; 103, 105), associated with the housing (5) of the receiving spool (6) in order, after printing, to facilitate the separation of the ribbon (2) and the sheets of paper (30).
- Cassette according to Claim 1, characterised by the fact that it is in one piece (1; 101).
- Cassette according to one of Claims 1 and 2, in which the window (9; 109) provided between the two housings (3, 5; 103, 105) is arranged to allow the cooperation of the ribbon (2) and of a support roller (23). ).
- Cassette according to one of Claims 1 to 3, in which the window (9; 109) is defined by means (3P, 5P) for guiding sheets of paper (30).
- Cassette according to one of Claims 1 to 4, in which, associated with the housing (5) of the receiving spool (6) are means (5P) for guiding sheets of paper (30) and the means (5A) for diverting the trajectory of the ribbon (2) form a chicane.
- Cassette according to one of Claims 1 to 5, characterised by the fact that it has symmetry with respect to a median plane (140) extending through the window (109).
- Cassette according to Claim 6, in which means (107, 108, 117, 118) are provided, which are arranged to drive the spools (104, 106) of the two housings (103, 105) in rotation.
- Cassette according to Claim 7, in which the means (107, 108, 117, 118) for driving the two spools (104, 106) in rotation are respectively disposed on two opposite sides of the cassette.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9309539 | 1993-08-03 | ||
| FR9309539A FR2708526B1 (en) | 1993-08-03 | 1993-08-03 | Ink ribbon holder for thermal transfer printer. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0638433A1 EP0638433A1 (en) | 1995-02-15 |
| EP0638433B1 true EP0638433B1 (en) | 1997-12-17 |
Family
ID=9449887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94401788A Expired - Lifetime EP0638433B1 (en) | 1993-08-03 | 1994-08-03 | Ink ribbon support for thermal transfer printer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5519427A (en) |
| EP (1) | EP0638433B1 (en) |
| AT (1) | ATE161228T1 (en) |
| DE (1) | DE69407360T2 (en) |
| FR (1) | FR2708526B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5724624A (en) * | 1993-06-16 | 1998-03-03 | Demaree; Michael S. | Simplified trigger, shutter and film advance system such as for use in a camera |
| US6148722A (en) * | 1998-06-08 | 2000-11-21 | Primera Technology, Inc. | Compact disc and recordable compact disc thermal transfer printer |
| US6302601B1 (en) | 1998-06-08 | 2001-10-16 | Primera Technology, Inc. | Substrate carrier and printhead mounting for printer |
| JP2007022016A (en) * | 2005-07-21 | 2007-02-01 | Alps Electric Co Ltd | Ink ribbon cassette |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4160605A (en) * | 1977-09-26 | 1979-07-10 | Pitney Bowes Deutschland Gmbh | Ink ribbon box |
| US4723133A (en) * | 1987-02-12 | 1988-02-02 | Eastman Kodak Company | Card ejecting apparatus |
| JPS63306067A (en) * | 1987-06-08 | 1988-12-14 | スター精密株式会社 | Heat transfer printer |
| ATE153601T1 (en) * | 1990-09-13 | 1997-06-15 | Canon Kk | CASSETTE AND RECORDING DEVICE FOR THIS CASSETTE |
| EP0488291A1 (en) * | 1990-11-29 | 1992-06-03 | Canon Kabushiki Kaisha | Ink sheet cartridge and recording apparatus using the ink sheet cartridge |
| JPH05138905A (en) * | 1991-07-05 | 1993-06-08 | Hitachi Ltd | Method and device for thermal transfer recording and ink paper cassette |
| JPH0596804A (en) * | 1991-10-14 | 1993-04-20 | Hitachi Ltd | Ink sheet and cassette thereof |
| JP2805666B2 (en) * | 1991-12-13 | 1998-09-30 | ソニー株式会社 | ink ribbon |
| EP0586265A1 (en) * | 1992-06-24 | 1994-03-09 | Axiohm | Operation Register Device for thermal transfer printers |
-
1993
- 1993-08-03 FR FR9309539A patent/FR2708526B1/en not_active Expired - Fee Related
-
1994
- 1994-08-03 US US08/285,419 patent/US5519427A/en not_active Expired - Lifetime
- 1994-08-03 AT AT94401788T patent/ATE161228T1/en not_active IP Right Cessation
- 1994-08-03 DE DE69407360T patent/DE69407360T2/en not_active Expired - Lifetime
- 1994-08-03 EP EP94401788A patent/EP0638433B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2708526A1 (en) | 1995-02-10 |
| DE69407360D1 (en) | 1998-01-29 |
| DE69407360T2 (en) | 1998-04-30 |
| FR2708526B1 (en) | 1995-09-29 |
| EP0638433A1 (en) | 1995-02-15 |
| ATE161228T1 (en) | 1998-01-15 |
| US5519427A (en) | 1996-05-21 |
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Legal Events
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