EP0769161A1 - Device for assembling and tightening the two pieces of a glass carrier slit circle of spectacles - Google Patents

Device for assembling and tightening the two pieces of a glass carrier slit circle of spectacles

Info

Publication number
EP0769161A1
EP0769161A1 EP95915290A EP95915290A EP0769161A1 EP 0769161 A1 EP0769161 A1 EP 0769161A1 EP 95915290 A EP95915290 A EP 95915290A EP 95915290 A EP95915290 A EP 95915290A EP 0769161 A1 EP0769161 A1 EP 0769161A1
Authority
EP
European Patent Office
Prior art keywords
screw
circle
strand
tightening
glass
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.)
Withdrawn
Application number
EP95915290A
Other languages
German (de)
French (fr)
Inventor
Maurice Petignat
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.)
Sarran Ets SA
Original Assignee
Sarran Ets SA
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 Sarran Ets SA filed Critical Sarran Ets SA
Publication of EP0769161A1 publication Critical patent/EP0769161A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C1/00—Assemblies of lenses with bridges or browbars
    • G02C1/06—Bridge or browbar secured to or integral with closed rigid rims for the lenses
    • G02C1/08—Bridge or browbar secured to or integral with closed rigid rims for the lenses the rims being tranversely split and provided with securing means
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C1/00—Assemblies of lenses with bridges or browbars
    • G02C1/02—Bridge or browbar secured to lenses without the use of rims
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
    • G02C2200/22—Leaf spring

Definitions

  • the subject of the present invention is a device for assembling and tightening the two strands of a split, split, glasses holder for glasses.
  • the assembly and clamping device should preferably, to allow easy mounting of the glass, be arranged so as to ensure the assembly of the two strands of the glass holder circle not tight, allowing easy engagement of the glass in the circle.
  • the optician can then, once the glass is housed in the circle, hold the latter and the glass with one hand and tighten with the other.
  • the clamping device is shaped so as to prevent the glass from being subjected to an exaggerated tension.
  • Such tension can also occur later, during large variations in temperature for example, which create, especially when the glass holder circle is metallic, harmful effects of expansion or contraction.
  • the object of the present invention is to provide a device for assembling and tightening the strands of a spectacle lens holder circle which meets all of these requirements.
  • the drawing represents, by way of example, an embodiment of the object of the invention and a variant.
  • Fig. 1 is an elevational view of part of glasses.
  • Fig. 2 is an axial section of a first embodiment of the device for assembling and tightening the two strands of the glasses holder circles of the glasses shown in FIG. 1.
  • Fig. 3 is an axial section, similar to that of FIG. 2, of a variant of this assembly device, and
  • Fig. 4 is a perspective view of a detail of this variant.
  • the face part of the glasses shown in fig. 1, generally designated by 1, comprises two split cup circles, the two strands of which are designated by la_ and lb, respectively. These two glasses circles are joined by a nasal bridge le.
  • the strand lb of the circle has a circular clearance 3, the bottom of which, designated by ld_, is pierced with a hole 4 traversed by the rod of the screw 2.
  • the non-threaded part of the latter carries a coil spring 5 housed in the recess 3 which rests on the one hand on Here the bottom of it and on the other hand on the head of the screw, designated by 2b_.
  • the optician wishing to mount a lens begins by engaging the screw 2, provided with the spring 5, in the strand 1b of the lens holder circle and then initiates the screwing of the screw.
  • the two strands of the glass holder circle then remain slightly spaced from each other, the spring 5 not yet being compressed, which makes it possible to easily accommodate the glass 9 in the circle.
  • the optician exerts a slight pressure on the two strands 1a and 1b and, with the other hand, screws the screw 2 using a screwdriver. He interrupts the operation when the resistance to screwing indicates to him that a suitable tension of the spring 5 is reached.
  • the optician then chooses, in a set of circlips 8 of different thicknesses at his disposal, the one whose thickness corresponds to the width of the part of the annular groove 7 of the screw which projects beyond the face 6 of the strand 1a glass holder circle. It sets up, in the groove 7, the circlip 8 that it has chosen, this circlip thus ensuring the locking of the screw preventing it from loosening untimely.
  • the mounting of the glasses is extremely easy and can be carried out without risk of deterioration thereof.
  • voltage variations due to temperature differences have no harmful effects on the see since absorbed by the spring 5.
  • the latter plays a role of shock absorber protecting the lenses during a possible fall of the glasses.
  • the variant of figs. 3 and 4 differs from the first embodiment in that the return spring 5 is replaced by a cambered washer 10 housed in the recess 3 of the strand lb_ of the glass holder circle. This washer, engaged on the rod of the screw 2, is inter ⁇ posed between the head 2b of the screw and the bottom of this creu ⁇ sure 3.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

The two pieces (1<u>a</u>, 1<u>b</u>) of the slit circle carrying the glass (9) of spectacles are assembled and tightened by means of a screw (2) which is screwed into the piece (1<u>a</u>). Said screw (2) carries a coil spring (5) housed in a cavity (3) of the piece (1<u>b</u>) and which bears, on the one hand, to the bottom (1<u>d</u>) of said cavity (3) and, on the other hand to the head (2<u>b</u>) of the screw. The screw is locked to the piece (1<u>a</u>) by means of a circlip (8) engaged into an annular groove (7) made in the screw (2) at the vicinity of its end. The thickness of the circlip (8) depends on the longitudinal position of the screw (2) with respect to the piece (1<u>a</u>) of the glass-carrier circle once the desired tension of the spring (5) has been reached.

Description

spositif J 'assemblage et de serrage des deux brins ά'un cercle,, fendu, porte-verre de lunettes.spositif J 'assembly and tightening of the two strands ά' a circle ,, split, glass holder glasses.
La présente invention a pour objet un dispositif d'assemblage et de serrage des deux brins d'un cercle, fendu, porte-verre de lunettes.The subject of the present invention is a device for assembling and tightening the two strands of a split, split, glasses holder for glasses.
L'assemblage et le serrage des cercles fendus porte-verres de lunettes pose divers problèmes, que ce soit lors du montage du verre ou que ce soit ultérieurement, à l'usage des lunettes.The assembly and tightening of the split glasses holder circles poses various problems, whether during the mounting of the glass or whether it is later, for the use of glasses.
En effet, le dispositif d'assemblage et de serrage doit, de préférence, pour permettre un montage aisé du verre, être agencé de façon à assurer l'assemblage des deux brins du cercle porte-verre non serrés, permettant l'engagement aisé du verre dans le cercle. L'opticien pourra alors, une fois le verre logé dans le cercle, tenir ce dernier et le verre d'une main et effectuer le serrage de l'autre. Lors du serrage, il y a un risque qu'une trop forte pression soit exercée sur le verre qui peut alors s'égriser, voire se fendre. Il est donc souhaitable que le dispositif de serrage soit conformé de façon à éviter que le verre soit soumis à une tension exagérée.Indeed, the assembly and clamping device should preferably, to allow easy mounting of the glass, be arranged so as to ensure the assembly of the two strands of the glass holder circle not tight, allowing easy engagement of the glass in the circle. The optician can then, once the glass is housed in the circle, hold the latter and the glass with one hand and tighten with the other. When tightening, there is a risk that too much pressure will be exerted on the glass which can then become eroded or even split. It is therefore desirable that the clamping device is shaped so as to prevent the glass from being subjected to an exaggerated tension.
Une telle tension peut d'ailleurs se produire ultérieurement, lors de variations importantes de tempé¬ rature par exemple, qui créent, tout particulièrement lorsque le cercle porte-verre est métallique, des effets de dilatation ou de contraction nocifs.Such tension can also occur later, during large variations in temperature for example, which create, especially when the glass holder circle is metallic, harmful effects of expansion or contraction.
Le but de la présente invention est de fournir un dispositif d'assemblage et de serrage des brins d'un cercle porte-verre de lunettes qui réponde à l'ensemble de ces exigences.The object of the present invention is to provide a device for assembling and tightening the strands of a spectacle lens holder circle which meets all of these requirements.
Ce but est atteint grâce aux moyens définis dans la revendication 1.This object is achieved by the means defined in claim 1.
Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention et une variante.The drawing represents, by way of example, an embodiment of the object of the invention and a variant.
La fig. 1 est une vue en élévation d'une partie de lunettes. La fig. 2 est une coupe axiale d'une première forme d'exécution du dispositif d'assemblage et de serrage des deux brins des cercles porte-verres des lunettes repré¬ sentées à la fig. 1.Fig. 1 is an elevational view of part of glasses. Fig. 2 is an axial section of a first embodiment of the device for assembling and tightening the two strands of the glasses holder circles of the glasses shown in FIG. 1.
La fig. 3 est une coupe axiale, analogue à celle de la fig. 2, d'une variante de ce dispositif d'assemblage, etFig. 3 is an axial section, similar to that of FIG. 2, of a variant of this assembly device, and
La fig. 4 est une vue en perspective d'un détail de cette variante.Fig. 4 is a perspective view of a detail of this variant.
La partie faciale des lunettes représentées à la fig. 1, désignée d'une façon générale par 1, comprend deux cercles porte-verres fendus dont les deux brins sont désignés par la_ et lb, respectivement. Ces deux cercles porte-verres sont réunis par un pont nasal le.The face part of the glasses shown in fig. 1, generally designated by 1, comprises two split cup circles, the two strands of which are designated by la_ and lb, respectively. These two glasses circles are joined by a nasal bridge le.
L'assemblage et le serrage des deux brins la et lb de chacun des cercles porte-verres sont assurés par une vis 2, dont seule la partie antérieure, désignée par 2& , est filetée, qui se visse dans le brin la_ du cercle.The assembly and tightening of the two strands 1a and 1b of each of the glass holder circles are ensured by a screw 2, of which only the front part, designated by 2 &, is threaded, which is screwed into the strand la_ of the circle.
Le brin lb du cercle présente uii dégagement circu¬ laire 3 dont le fond, désigné par ld_, est percé d'un trou 4 traversé par la tige de la vis 2. La partie non filetée de cette dernière porte un ressort à boudin 5 logé dans la creusure 3 qui prend appui d'une part sur le fond Ici de celle-ci et d'autre part sur la tête de la vis, désignée par 2b_. Enfin, la partie filetéeThe strand lb of the circle has a circular clearance 3, the bottom of which, designated by ld_, is pierced with a hole 4 traversed by the rod of the screw 2. The non-threaded part of the latter carries a coil spring 5 housed in the recess 3 which rests on the one hand on Here the bottom of it and on the other hand on the head of the screw, designated by 2b_. Finally, the threaded part
2a^ de la vis 2 déborde du brin la dans lequel elle est vissée, sa partie débordante présentant, au ras de la face externe 6 du brin la, une gorge annulaire 7 dans laquelle est engagée une rondelle-pincette 8, connue sous le nom de circlip. La largeur ou hauteur de cette gorge 7 est telle qu'une partie de celle-ci est située à l'intérieur du brin la du cercle porte-verre.2a ^ of the screw 2 extends beyond the strand la into which it is screwed, its projecting part having, flush with the external face 6 of the strand la, an annular groove 7 in which is engaged a pincer washer 8, known by the name circlip. The width or height of this groove 7 is such that a part of it is located inside the strand 1a of the glass holder circle.
Grâce à cette disposition, l'opticien désirant monter un verre, tel le verre 9, commence par engager la vis 2, munie du ressort 5, dans le brin lb du cercle porte-verre et amorce ensuite le vissage de la vis. Les deux brins du cercle porte-verre restent alors légèrement écartés l'un de l'autre, le ressort 5 n'étant pas encore comprimé, ce qui permet de loger aisément le verre 9 dans le cercle.Thanks to this arrangement, the optician wishing to mount a lens, such as lens 9, begins by engaging the screw 2, provided with the spring 5, in the strand 1b of the lens holder circle and then initiates the screwing of the screw. The two strands of the glass holder circle then remain slightly spaced from each other, the spring 5 not yet being compressed, which makes it possible to easily accommodate the glass 9 in the circle.
Tenant ce dernier d'une main, l'opticien exerce une légère pression sur les deux brins la et lb et, de l'autre main, visse la vis 2 à l'aide d'un tournevis. Il interrompt l'opération au moment où la résistance au vissage lui indique qu'une tension convenable du ressort 5 est atteinte. L'opticien choisit alors, dans un jeu de circlips 8 d'épaisseurs différentes dont il dispose, celui dont l'épaisseur correspond à la largeur de la partie de la gorge annulaire 7 de la vis qui déborde de la face 6 du brin la du cercle porte-verre. Il met en place, dans la gorge 7, le circlip 8 qu'il aura choisi, ce circlip assurant ainsi le verrouillage de la vis empêchant qu'elle ne se desserre intempestivement.Holding the latter in one hand, the optician exerts a slight pressure on the two strands 1a and 1b and, with the other hand, screws the screw 2 using a screwdriver. He interrupts the operation when the resistance to screwing indicates to him that a suitable tension of the spring 5 is reached. The optician then chooses, in a set of circlips 8 of different thicknesses at his disposal, the one whose thickness corresponds to the width of the part of the annular groove 7 of the screw which projects beyond the face 6 of the strand 1a glass holder circle. It sets up, in the groove 7, the circlip 8 that it has chosen, this circlip thus ensuring the locking of the screw preventing it from loosening untimely.
Il est nécessaire de pouvoir disposer de circlips d'épaisseurs différentes car la position longitu¬ dinale finale de la vis 2 par rapport au brin la du cercle porte-verre varie en fonction de facteurs divers, tels que les tolérances de fabrication de la monture des lunettes et des verres, la pression que l'opticien désire voir appliquer au verre, etc..It is necessary to be able to have circlips of different thicknesses because the final longitudinal position of the screw 2 relative to the strand 1a of the glass-holder circle varies according to various factors, such as the manufacturing tolerances of the frame of the glasses and glasses, the pressure that the optician wants to see applied to the glass, etc.
Grâce à la présente disposition, le montage des verres est extrêmement aisé et peut s'effectuer sans risque de détérioration de ceux-ci. De plus, des variations de tension dues à des différences de température sont sans effets nocifs sur les verrez puisqu'absorbées par le ressort 5. L'expérience montre que ce dernier joue un rôle d'amortisseur de chocs protégeant les verres lors d'une chute éventuelle des lunettes.Thanks to this arrangement, the mounting of the glasses is extremely easy and can be carried out without risk of deterioration thereof. In addition, voltage variations due to temperature differences have no harmful effects on the see since absorbed by the spring 5. Experience shows that the latter plays a role of shock absorber protecting the lenses during a possible fall of the glasses.
La variante des figs. 3 et 4 diffère de la première forme d'exécution par le fait que le ressort de rappel 5 est remplacé par une rondelle cambrée 10 logée dans la creusure 3 du brin lb_ du cercle porte-verre. Cette rondelle, engagée sur la tige de la vis 2, est inter¬ posée entre la tête 2b de la vis et le fond de cette creu¬ sure 3. Elle a l'avantage, par rapport au ressort à boudin de la première forme d'exécution, de non seulement sollici¬ ter axialement la vis 2 pour l'empêcher de tourner sur elle- même, en créant une friction sur les filets de la vis prenant dans le brin la du cercle porte-verre, mais de produire une liaison directe, par friction, entre la vis et le brin lb grâce au fait que, lorsqu'elle est légèrement écrasée par la tête de la vis, elle vient pincer par son trou central la tige de la vis et forcer, par sa périphérie, sur la paroi latérale de la creusure 3. Il en résulte donc un double effet de friction empêchant la vis de se desserrer intempestivement. The variant of figs. 3 and 4 differs from the first embodiment in that the return spring 5 is replaced by a cambered washer 10 housed in the recess 3 of the strand lb_ of the glass holder circle. This washer, engaged on the rod of the screw 2, is inter¬ posed between the head 2b of the screw and the bottom of this creu¬ sure 3. It has the advantage, compared to the coil spring of the first form d 'execution, of not only stressing axially the screw 2 to prevent it from turning on itself, creating friction on the threads of the screw taking in the strand 1a of the glass-holder circle, but of producing a connection direct, by friction, between the screw and the strand 1b thanks to the fact that, when it is slightly crushed by the head of the screw, it comes to pinch by its central hole the rod of the screw and force, by its periphery, on the side wall of the recess 3. This therefore results in a double friction effect preventing the screw from loosening untimely.

Claims

R E V E N D I C A T I O N S
1. Dispositif d'assemblage et de serrage des deux brins d'un cercle, fendu, porte-verre de lunettes, caractérisé par le fait que ledit assemblage est assuré par une vis prenant dans l'un des brins dudit cercle et traversant un passage ménagé dans l'autre, un dispositif élastique étant interposé entre le second brin du cercle et la tête de ladite vis de manière que la force de serrage soit déte -minée par la tension dudit dispositif élastique.1. Device for assembling and tightening the two strands of a split circle, glasses holder for glasses, characterized in that said assembly is ensured by a screw taking in one of the strands of said circle and passing through a passage formed in the other, an elastic device being interposed between the second strand of the circle and the head of said screw so that the tightening force is determined by the tension of said elastic device.
2. Dispositif suivant la revendication 1, caractérisé par le fait que la vis dépasse le brin du cercle dans lequel elle est vissée, cette vis présentant, située au ras de la face dudit brin sur laquelle elle dé¬ borde, une gorge annulaire dans laquelle est engagé un circlip assurant ainsi le verrouillage de la vis empêchant que cette dernière ne se desserre intempestivement. 2. Device according to claim 1, characterized in that the screw exceeds the strand of the circle in which it is screwed, this screw having, located flush with the face of said strand on which it de¬ borders, an annular groove in which a circlip is engaged, thus ensuring the locking of the screw preventing the latter from loosening inadvertently.
3. Dispositif suivant la revendication 2, caractérisé par le fait que la largeur de ladite gorge annulaire est telle que celle-ci est partiellement située à l'intérieur du brin du cercle dans lequel la vis est vissée, de telle manière que, selon la position longitudinale de ladite vis par rapport audit brin, des circlips d'épaisseurs différentes puissent être utilisés pour que soit assuré un verrouillage efficace de la vis.3. Device according to claim 2, characterized in that the width of said annular groove is such that it is partially located inside the strand of the circle in which the screw is screwed, so that, according to the longitudinal position of said screw relative to said strand, circlips of different thicknesses can be used to ensure effective locking of the screw.
4. Dispositif suivant la revendication 1, caractérisé par le fait que le dispositif élastique est constitué par un ressort à boudin engagé sur la tige de ladite vis et qui est logé dans une creusure ménagée dans le second brin du cercle, creusure dont le fond est percé d'un trou traversé par la tige de la vis.4. Device according to claim 1, characterized in that the elastic device consists of a coil spring engaged on the rod of said screw and which is housed in a recess formed in the second strand of the circle, a recess whose bottom is drilled with a hole through which the screw rod passes.
5. Dispositif suivant la revendication 1, caractérisé par le fait que le dispositif élastique est constitué par une rondelle cambrée engagée sur la tige de ladite vis et qui est interposée entre la tête de celle-ci et le second brin du cercle. 5. Device according to claim 1, characterized in that the elastic device is constituted by an arched washer engaged on the rod of said screw and which is interposed between the head thereof and the second strand of the circle.
EP95915290A 1994-05-24 1995-04-27 Device for assembling and tightening the two pieces of a glass carrier slit circle of spectacles Withdrawn EP0769161A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH159694 1994-05-24
CH1596/94 1994-05-24
PCT/IB1995/000304 WO1995032448A1 (en) 1994-05-24 1995-04-27 Device for assembling and tightening the two pieces of a glass carrier slit circle of spectacles

Publications (1)

Publication Number Publication Date
EP0769161A1 true EP0769161A1 (en) 1997-04-23

Family

ID=4214128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95915290A Withdrawn EP0769161A1 (en) 1994-05-24 1995-04-27 Device for assembling and tightening the two pieces of a glass carrier slit circle of spectacles

Country Status (7)

Country Link
EP (1) EP0769161A1 (en)
JP (1) JPH10500501A (en)
KR (1) KR970703542A (en)
CN (1) CN1152961A (en)
AU (1) AU2222695A (en)
CA (1) CA2191206A1 (en)
WO (1) WO1995032448A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614761C1 (en) * 1996-04-02 1997-10-09 Huma Gmbh Feinwerktechn Produk Spectacle frame with a locking block screw connection secured against loosening
IT237468Y1 (en) * 1997-05-05 2000-09-13 Fabrizio Prestinari DEVICE FOR THE OPENING OR CLOSING OF GLASS ORBITS BASED ON THE USE OF A KEY AND AN ELASTIC ORGAN
IT248019Y1 (en) * 1999-04-06 2002-12-09 Italiana Aste Srl PERFECTED GLASSES MANUFACTURED AT LEAST PARALLEL METALLIC CONFIG
ITMI20020005U1 (en) * 2002-01-07 2003-07-07 Prestinari Fabrizio CLOSING DEVICE FOR ORBITAL EYEWEAR CROWN
CN101923225A (en) * 2010-08-14 2010-12-22 深圳市欧帝光学有限公司 Screw nip free eyeglasses

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US2412120A (en) * 1945-06-28 1946-12-03 Bausch & Lomb Spectacle temple connection
FR1135816A (en) * 1955-08-10 1957-05-03 American Optical Corp Ophthalmic frame with articulations to prevent open temples from falling back and getting caught
FR1470276A (en) * 1966-03-01 1967-02-17 Caisse Nationale Suisse D Assu Interchangeable lens glasses
FR2271594A1 (en) * 1974-05-14 1975-12-12 Royal Plastic Protective spectacle frames with horizontal split bridge - having bore, counterbore, screw and compression spring to join sections
JPS5642652Y2 (en) * 1979-04-20 1981-10-06
AT377861B (en) * 1982-03-02 1985-05-10 Schmied Silhouette Brillen LOCKING DEVICE FOR THE GLASS FRAME OF AN EYE FRAME
IT8459334V0 (en) * 1984-05-02 1984-05-02 Celes Optical CLOSING FOR TUBES CLOSING CIRCLE PARTICULARLY FOR GLASSES FRAMES.
IT210786Z2 (en) * 1986-05-21 1989-01-11 Esse Fabbrica Occhiali Di R A GLASSES FOR QUICK CHANGE LENSES.
JPS63184721A (en) * 1987-01-27 1988-07-30 Matsuo Aoyama Coupling mechanism between rim lock and single endpiece
US5325132A (en) * 1992-11-02 1994-06-28 Mulrine Brian F Eyewire locking device

Non-Patent Citations (1)

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Title
See references of WO9532448A1 *

Also Published As

Publication number Publication date
CN1152961A (en) 1997-06-25
JPH10500501A (en) 1998-01-13
KR970703542A (en) 1997-07-03
AU2222695A (en) 1995-12-18
WO1995032448A1 (en) 1995-11-30
CA2191206A1 (en) 1995-11-30

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