FR2757834A1 - Plastic screw cap for bottle or flask - Google Patents

Plastic screw cap for bottle or flask Download PDF

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Publication number
FR2757834A1
FR2757834A1 FR9616054A FR9616054A FR2757834A1 FR 2757834 A1 FR2757834 A1 FR 2757834A1 FR 9616054 A FR9616054 A FR 9616054A FR 9616054 A FR9616054 A FR 9616054A FR 2757834 A1 FR2757834 A1 FR 2757834A1
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FR
France
Prior art keywords
capsule
container
plug
screwing
cap
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
FR9616054A
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French (fr)
Other versions
FR2757834B1 (en
Inventor
Christian Beranger
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.)
Parfums Christian Dior SA
Original Assignee
Parfums Christian Dior 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 Parfums Christian Dior SA filed Critical Parfums Christian Dior SA
Priority to FR9616054A priority Critical patent/FR2757834B1/en
Publication of FR2757834A1 publication Critical patent/FR2757834A1/en
Application granted granted Critical
Publication of FR2757834B1 publication Critical patent/FR2757834B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/045Discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
    • B65D41/0478Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap the cap being formed by several elements connected together

Abstract

This is a new bottle or flask cap. It is screwed on, forming a tight seal. The hollow outer cap (3) contains a novel feature: a further cap (8). This is interposed between a flat compression seal (4) seal and the underside (9) of the outer cap. The further cap includes a portion of thinned material (15), where its top surface (10) joins the inner skirt (11). When the cap is unscrewed, this surface (10) is in a plane slightly below the lower surface of the outer cap (3). Preferably, the outer cap (3) is relatively rigid, comprising a thermoplastic such as polypropylene.

Description

La présente invention a essentiellement pour objet un dispositif d'obturation étanche par vissage, d'un récipient, tel que par exemple une bouteille, un flacon ou un pot. The present invention essentially relates to a sealed closure device by screwing, of a container, such as for example a bottle, a vial or a pot.

I1 est classique de visser un bouchon intérieurement creux sur le col fileté d'un récipient pour l'obturer. Dans le bouchon peut être logé un joint plat dont la compression réalise la fermeture étanche du récipient. It is conventional to screw an internally hollow stopper onto the threaded neck of a container to seal it. In the cap can be housed a flat seal, the compression of which makes the container watertight.

Toutefois, à la longue, c'est-à-dire après un certain nombre d'opérations de vissage et de dévissage du bouchon, le joint se fatigue de sorte que l'étanchéité du bouchon n'est plus parfaite. Dans ce cas, il est naturel pour l'utilisateur de tenter d'assurer l'étanchéité en augmentant la force de serrage. Mais un tel serrage en force conduit, dans bien des cas, en fin du vissage, au blocage du bouchon sur le col du récipient. Il faut aussi observer que, même lorsque le bouchon est bloqué par vissage à force, l'étanchéité ne peut pas être parfaitement assurée. However, in the long run, that is to say after a certain number of operations of screwing and unscrewing the plug, the seal becomes tired so that the sealing of the plug is no longer perfect. In this case, it is natural for the user to try to ensure sealing by increasing the clamping force. But such tightening in force leads, in many cases, at the end of the screwing, to the blocking of the stopper on the neck of the container. It should also be noted that, even when the cap is blocked by force-tightening, the seal cannot be perfectly guaranteed.

Par ailleurs, dans le cas d'un vissage dit indexé ou orienté, c'est-à-dire dans le cas où le bouchon est positivement bloqué à la fin d'une course de rotation prédéterminée du bouchon, généralement comprise entre une fraction de tour et deux tours, on comprend aisément qu'en raison du blocage en fin de vissage, il ne sera pas possible d'améliorer l'étanchéité de la fermeture du récipient en serrant davantage ou à force le bouchon sur le col. Furthermore, in the case of a so-called indexed or oriented screwing, that is to say in the case where the plug is positively blocked at the end of a predetermined rotation stroke of the plug, generally between a fraction of tower and two towers, it is easily understood that due to the blocking at the end of screwing, it will not be possible to improve the tightness of the closure of the container by tightening the cap more or forcibly on the neck.

En outre, pour améliorer l'étanchéité de la fermeture d'un récipient, en particulier lorsqu'elle est réalisée par un vissage indexé du bouchon sur le col du récipient, il est connu d'interposer entre le joint plat et le fond du bouchon un moyen élastiquement déformable, tel que par exemple un joint torique qui, lors du vissage du bouchon, comprime élastiquement le joint plat et contribue, de ce fait, à la réalisation de l'étanchéité de la fermeture du récipient. In addition, to improve the tightness of the closure of a container, in particular when it is carried out by an indexed screwing of the cap on the neck of the container, it is known to interpose between the flat seal and the bottom of the cap. an elastically deformable means, such as for example an O-ring which, when the cap is screwed on, elastically compresses the flat seal and therefore contributes to the sealing of the closure of the container.

Une telle solution peut toutefois s'avérer imparfaite, en particulier lorsqu'il s'agit de la fermeture d'un récipient dont le col présente un diamètre relativement important, tel que le col d'un pot de produit cosmétique par exemple. Such a solution may however prove to be imperfect, in particular when it is a question of closing a container whose neck has a relatively large diameter, such as the neck of a jar of cosmetic product for example.

Au surplus, la nécessité de comprimer un tel joint torique ne peut qu'accroître le couple de vissage et de dévissage du bouchon, ce qui, autrement dit, procure une certaine dureté à l'opération de vissage et de dévissage du bouchon sur l'ouverture du récipient. In addition, the need to compress such an O-ring can only increase the screwing and unscrewing torque of the plug, which, in other words, gives a certain hardness to the operation of screwing and unscrewing the plug on the opening of the container.

Aussi, l'invention a pour but de remédier aux inconvénients ci-dessus en proposant un bouchon d'obturation perfectionné permettant une bonne absorption des tolérances de fabrication, rendant aisée l'opération de vissage et de dévissage sur l'ouverture du récipient et réalisant d'une façon parfaite, même à la longue, une obturation étanche de l'ouverture du récipient. Also, the invention aims to remedy the above drawbacks by proposing an improved closure plug allowing good absorption of manufacturing tolerances, making easy the screwing and unscrewing operation on the opening of the container and achieving in a perfect way, even in the long term, a tight closure of the opening of the container.

A cet effet, l'invention a pour objet un dispositif d'obturation étanche par vissage d'un récipient, tel que par exemple une bouteille ou un flacon, comprenant un bouchon intérieurement creux dans lequel est logé un joint plat susceptible de réaliser par compression la fermeture étanche du récipient et ce par l'intermédiaire d'un moyen interposé entre ledit joint plat et le fond du bouchon, caractérisé en ce que ledit moyen est une capsule qui comporte une portion amincie de matière dans la zone de raccordement du plateau à la jupe de la capsule, et dont le plateau, à l'état non comprimé de la capsule, est situé dans un plan légèrement en dessous du plan du fond du bouchon sur lequel la jupe de la capsule prend appui. To this end, the subject of the invention is a sealed closure device by screwing a container, such as for example a bottle or a vial, comprising an internally hollow stopper in which is housed a flat seal capable of producing by compression. sealing the container by means of a means interposed between said flat seal and the bottom of the stopper, characterized in that said means is a capsule which comprises a thinned portion of material in the connection zone of the tray to the skirt of the capsule, and the plate of which, in the uncompressed state of the capsule, is situated in a plane slightly below the plane of the bottom of the stopper on which the skirt of the capsule is supported.

Ce dispositif est encore caractérisé en ce que la périphérie interne de la jupe de la capsule comporte un filetage coopérant avec un autre filetage sur le col du récipient. This device is further characterized in that the internal periphery of the skirt of the capsule has a thread cooperating with another thread on the neck of the container.

Selon une autre caractéristique de cette invention, au moins l'un des deux filetages précités comporte une butée ou analogue de blocage en fin de rotation de vissage du bouchon sur le col du récipient.  According to another characteristic of this invention, at least one of the two aforementioned threads comprises a stop or the like for blocking at the end of the rotation of the screwing of the stopper on the neck of the container.

On précisera encore ici que la capsule est en matériau relativement rigide, tel que par exemple un matériau thermoplastique, le polypropylène ou autre matériau analogue. It will also be specified here that the capsule is made of a relatively rigid material, such as for example a thermoplastic material, polypropylene or other similar material.

Mais d'autres caractéristiques et avantages de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple et dans lesquels
- la figure 1 est une vue en coupe axiale et en position de vissage d'un dispositif d'obturation selon l'invention monté sur l'ouverture d'un flacon, et
- la figure 2 est une vue partielle, en élévation, d'un flacon dont le col est muni d'un système de vissage dit indexé ou oriente.
However, other characteristics and advantages of the invention will appear better in the detailed description which follows and refers to the appended drawings, given solely by way of example and in which
FIG. 1 is a view in axial section and in the screwing position of a closure device according to the invention mounted on the opening of a bottle, and
- Figure 2 is a partial view, in elevation, of a bottle whose neck is provided with a screwing system called indexed or oriented.

En se reportant au dessin, on voit un flacon ou analogue 1 sur l'ouverture 2 duquel peut être vissé un bouchon intérieurement creux 3 à l'intérieur duquel est logé un joint plat 4 en toute matière appropriée. Referring to the drawing, a bottle or the like 1 can be seen on the opening 2 from which an internally hollow plug 3 can be screwed inside of which is housed a flat seal 4 made of any suitable material.

Ce joint plat 4 est susceptible de prendre appui de façon étanche sur l'extrémité 6 du goulot 7 du flacon 1 pour réaliser la fermeture étanche de l'ouverture 2 définie par le goulot 7. This flat seal 4 is capable of sealingly pressing on the end 6 of the neck 7 of the bottle 1 in order to seal the opening 2 defined by the neck 7.

Conformément à l'invention, une capsule, repérée d'une manière générale en 8, est interposée entre le joint plat 4 et la paroi de fond 9 du bouchon 3. According to the invention, a capsule, generally identified at 8, is interposed between the flat seal 4 and the bottom wall 9 of the plug 3.

Plus précisément, cette capsule 8 comporte une partie centrale formant plateau 10 interposé entre le joint plat 4 et le fond 9 du bouchon 3, et une jupe 11 qui est adjacente à la jupe 12 appartenant au bouchon 3 et qui comporte, sur sa périphérie interne, un filetage 13 coopérant avec un autre filetage 14 prévu sur la périphérie externe du goulot 7 du flacon 1. More specifically, this capsule 8 comprises a central part forming a plate 10 interposed between the flat seal 4 and the bottom 9 of the plug 3, and a skirt 11 which is adjacent to the skirt 12 belonging to the plug 3 and which comprises, on its internal periphery , a thread 13 cooperating with another thread 14 provided on the outer periphery of the neck 7 of the bottle 1.

Dans la zone de raccordement du plateau 10 et de la jupe 11 constituant ensemble la capsule 8, est prévue une portion amincie de matière 15 qui, suivant l'exemple de réalisation représenté, est circonférentielle.  In the connection area of the plate 10 and the skirt 11 together constituting the capsule 8, there is provided a thinned portion of material 15 which, according to the embodiment shown, is circumferential.

Ainsi, comme on le comprend, un débattement vertical du plateau 10 par rapport à la jupe 11 est possible grâce à la portion amincie 15. Thus, as can be understood, a vertical movement of the plate 10 relative to the skirt 11 is possible thanks to the thinned portion 15.

Plus précisément, à l'état libre et non comprimé de la capsule 8, c'est-à-dire à l'état non vissé du bouchon 3, le plateau 10 de la capsule 8 est situé dans un plan légèrement en dessous du plan du fond 9 du bouchon 3 sur lequel prend appui la jupe 11 de la capsule 8. More specifically, in the free and uncompressed state of the capsule 8, that is to say in the unscrewed state of the cap 3, the plate 10 of the capsule 8 is located in a plane slightly below the plane from the bottom 9 of the plug 3 on which the skirt 11 of the capsule 8 is supported.

Cette capsule est en un matériau relativement rigide, par exemple un matériau thermoplastique tel que le polypropylène ou un autre matériau analogue. This capsule is made of a relatively rigid material, for example a thermoplastic material such as polypropylene or another similar material.

On comprend donc que lors du vissage du bouchon 3 sur le goulot 7 du récipient 1, le joint plat 4 se comprimera progressivement et la souplesse créée par la portion de matière amincie 15 sur la capsule 8 permettra une translation verticale vers le haut de son plateau 10. It is therefore understood that when the plug 3 is screwed onto the neck 7 of the container 1, the flat seal 4 will gradually compress and the flexibility created by the portion of thinned material 15 on the capsule 8 will allow vertical translation upwards of its plate. 10.

Ce mouvement relatif permettra avantageusement de réduire le couple de vissage et de dévissage de la capsule 8 et de rattraper un éventuel fluage du joint plat 4. This relative movement will advantageously make it possible to reduce the screwing and unscrewing torque of the capsule 8 and to compensate for any creep in the flat seal 4.

Egalement, grâce à la souplesse de la capsule 8 procurée par la portion amincie de matière 15, le vissage et le dévissage du bouchon 3 seront non seulement plus confortables pour l'utilisateur, mais permettront avantageusement une absorption plus importante des tolérances de fabrication.Also, thanks to the flexibility of the capsule 8 provided by the thinned portion of material 15, the screwing and unscrewing of the plug 3 will not only be more comfortable for the user, but will advantageously allow greater absorption of manufacturing tolerances.

Comme on le voit sur la figure 2, le dispositif d'obturation selon cette invention pourra avantageusement être appliqué à un système de vissage dit indexé ou orienté prévu sur le col 7 du récipient 1. As can be seen in FIG. 2, the closure device according to this invention can advantageously be applied to a so-called indexed or oriented screw system provided on the neck 7 of the container 1.

Plus précisément, on voit sur la figure 2 que le filetage 14 sur le col ou goulot 7 se termine par un élément 16 formant butée pour le bouchon 3 en fin de vissage de celui-ci sur le col 7 du récipient. Autrement dit, en fin de vissage, le filetage 13 de la jupe 11 de la capsule 8 appartenant au bouchon 3 viendra, en fin de course de vissage, buter sur l'élément 16. Ainsi, dans le cas d'un flacon avec bouchon, tous les deux ayant une section transversale non circulaire, on sera certain qu'en position fermée, la position du bouchon par rapport au flacon sera toujours respectée. More specifically, it can be seen in FIG. 2 that the thread 14 on the neck or neck 7 ends with an element 16 forming a stop for the plug 3 at the end of screwing it on the neck 7 of the container. In other words, at the end of screwing, the thread 13 of the skirt 11 of the capsule 8 belonging to the stopper 3 will, at the end of the screwing stroke, come up against the element 16. Thus, in the case of a bottle with stopper , both having a non-circular cross section, it will be certain that in the closed position, the position of the stopper relative to the bottle will always be respected.

En outre, grâce au système d'obturation étanche selon cette invention, on sera toujours certain d'obtenir une étanchéité parfaite, bien que l'on ne puisse pas, dans ce cas-là, effectuer un vissage en force, c'est-à-dire aller audelà de la position de butée du bouchon sur le col du récipient. In addition, thanks to the sealed closure system according to this invention, it will always be certain to obtain a perfect seal, although it is not possible, in this case, to perform a tight screwing, that is to say that is to say go beyond the stop position of the stopper on the neck of the container.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.

Ainsi, le dispositif d'obturation selon cette invention peut trouver application aussi bien dans le cas de vissages classiques que de vissages dits indexés. Il peut être utilisé pour la fermeture de flacons ou pots cosmétiques circulaires ou non. Thus, the closure device according to this invention can find application both in the case of conventional screw connections as well as so-called indexed screw connections. It can be used for closing circular or non-circular cosmetic bottles or jars.

C'est dire que l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons.  This means that the invention includes all the technical equivalents of the means described as well as their combinations.

Claims (4)

REVEND I CAT IONSRESELL I CAT IONS 1. Dispositif d'obturation étanche par vissage d'un récipient tel qu'une bouteille ou un flacon, comprenant un bouchon (3) intérieurement creux dans lequel est logé un joint plat (4) susceptible de réaliser par compression la fermeture étanche du récipient (1) et ce par l'intermédiaire d'un moyen interposé entre ledit joint plat (4) et le fond (9) du bouchon (3), caractérisé en ce que ledit moyen est une capsule (8) qui comporte une portion amincie de matière (15) dans la zone de raccordement du plateau (10) à la jupe (11) de la capsule (8) et dont le plateau (10), à l'état non comprimé de la capsule (8), est situé dans un plan légèrement en dessous du plan du fond (9) du bouchon (3) sur lequel la jupe (11) de la capsule (8) prend appui. 1. Sealing device for sealing by screwing a container such as a bottle or a flask, comprising an internally hollow stopper (3) in which is housed a flat seal (4) capable of achieving by compression the sealing of the container (1) and this by means of a means interposed between said flat seal (4) and the bottom (9) of the plug (3), characterized in that said means is a capsule (8) which has a thinned portion of material (15) in the zone of connection of the plate (10) to the skirt (11) of the capsule (8) and whose plate (10), in the uncompressed state of the capsule (8), is located in a plane slightly below the plane of the bottom (9) of the plug (3) on which the skirt (11) of the capsule (8) is supported. 2. Dispositif selon la revendication 1, caractérisé en ce que la périphérie interne de la jupe (11) de la capsule (8) comporte un filetage (13) coopérant avec un autre filetage (14) sur le col (7) du récipient (1). 2. Device according to claim 1, characterized in that the internal periphery of the skirt (11) of the capsule (8) comprises a thread (13) cooperating with another thread (14) on the neck (7) of the container ( 1). 3. Dispositif selon la revendication 2, caractérisé en ce qu'au moins l'un des deux filetages précités (13, 14) comporte une butée ou analogue (15) de blocage en fin de rotation de vissage du bouchon (3) sur le col (7) du récipient (1). 3. Device according to claim 2, characterized in that at least one of the two aforementioned threads (13, 14) comprises a stop or the like (15) for blocking at the end of rotation of screwing of the plug (3) on the neck (7) of the container (1). 4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la capsule précitée (8) est en un matériau relativement rigide, tel que par exemple un matériau thermoplastique, le polypropylène ou autre matériau analogue.  4. Device according to claim 1 or 2, characterized in that the aforementioned capsule (8) is made of a relatively rigid material, such as for example a thermoplastic material, polypropylene or other similar material.
FR9616054A 1996-12-26 1996-12-26 DEVICE FOR SEALING A CONTAINER BY SCREWING Expired - Lifetime FR2757834B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9616054A FR2757834B1 (en) 1996-12-26 1996-12-26 DEVICE FOR SEALING A CONTAINER BY SCREWING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9616054A FR2757834B1 (en) 1996-12-26 1996-12-26 DEVICE FOR SEALING A CONTAINER BY SCREWING

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FR2757834A1 true FR2757834A1 (en) 1998-07-03
FR2757834B1 FR2757834B1 (en) 1999-03-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002326645A (en) * 2001-04-26 2002-11-12 Kao Corp Capped container
FR2927884A1 (en) * 2008-02-26 2009-08-28 Segede UNMOUNTED CONTAINER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5283736B2 (en) * 2011-08-19 2013-09-04 花王株式会社 Container with cap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041403A (en) * 1932-09-17 1936-05-19 Alan R Fergusson Closure cap for receptacles
GB2053864A (en) * 1979-07-20 1981-02-11 Yoshida Kogyo Kk Air-tight cap for a bottle or like container
GB2171086A (en) * 1985-02-19 1986-08-20 Puig Antonio Sa Bottle closure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041403A (en) * 1932-09-17 1936-05-19 Alan R Fergusson Closure cap for receptacles
GB2053864A (en) * 1979-07-20 1981-02-11 Yoshida Kogyo Kk Air-tight cap for a bottle or like container
GB2171086A (en) * 1985-02-19 1986-08-20 Puig Antonio Sa Bottle closure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002326645A (en) * 2001-04-26 2002-11-12 Kao Corp Capped container
FR2927884A1 (en) * 2008-02-26 2009-08-28 Segede UNMOUNTED CONTAINER

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Publication number Publication date
FR2757834B1 (en) 1999-03-12

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