EP1385755B1 - Emballage plastique comportant au moins un bouton scelle - Google Patents

Emballage plastique comportant au moins un bouton scelle Download PDF

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Publication number
EP1385755B1
EP1385755B1 EP02735254A EP02735254A EP1385755B1 EP 1385755 B1 EP1385755 B1 EP 1385755B1 EP 02735254 A EP02735254 A EP 02735254A EP 02735254 A EP02735254 A EP 02735254A EP 1385755 B1 EP1385755 B1 EP 1385755B1
Authority
EP
European Patent Office
Prior art keywords
packaging
sealing material
plastic packaging
knob
sealing
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
Application number
EP02735254A
Other languages
German (de)
English (en)
Other versions
EP1385755A1 (fr
Inventor
Rudolf Fux
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.)
CFS Kempten GmbH
Original Assignee
CFS Kempten GmbH
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 CFS Kempten GmbH filed Critical CFS Kempten GmbH
Publication of EP1385755A1 publication Critical patent/EP1385755A1/fr
Application granted granted Critical
Publication of EP1385755B1 publication Critical patent/EP1385755B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2072—Mechanical means
    • B65D77/2076—Mechanical means provided by the cover itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00—Special receptacle or package
    • Y10S206/807—Tamper proof

Definitions

  • the present invention relates to a plastic packaging comprising a packaging tray and a cover film, wherein the cover film is sealed in the sealing region at least partially peelable to the packaging tray and the lid film or the packaging tray at least one nub and the packaging tray or the lid sheet complementary thereto has at least one recess through which the nub (s) is / are inserted when closing the plastic packaging, wherein at least a portion of at least one nub is provided with a sealing material or preferably at least a portion of at least one nub and the edge region of the complementary Aussproung are connected to a sealing material, the first time Opening the packaging is damaged. Furthermore, the present invention relates to methods for producing the packaging according to the invention.
  • plastic packaging packages have a packaging tray in which the packaged product is located and a lid film.
  • the lidding foil is sealed to the packaging tray. Since the packaged goods are often not consumed immediately after opening, it is advantageous if the pack can be resealed after opening.
  • the German patent application with the file number DE 198 59 042.3 teaches a plastic packaging provided with knobs from a packaging tray and a lid film, wherein the lid film is sealed in the sealing area at least partially peelable to the packaging tray and the lidding film or the packaging tray at least one knob and the packaging tray or Cover film complementary thereto has at least one recess through which the nub is inserted, so that the plastic package is re-closed after opening.
  • the present invention is therefore based on the object to provide a provided with at least one knob plastic packaging that does not have the disadvantages of the prior art.
  • a plastic packaging from a packaging tray and a cover film, wherein the lid film is sealed in the sealing region at least partially peelable to the packaging tray and the lid film or the packaging tray at least one nub and the packaging tray or lid film complementary to at least one Recess has, through which the knob (s) is inserted when sealing the plastic packaging or, wherein at least a portion of at least one knob is provided with a sealing material or preferably at least a portion of at least one knob and the edge region of the complementary Aussproung connected to a sealing material are damaged when opening the package for the first time.
  • a packaging tray in the sense of the invention is any packaging tray familiar to the person skilled in the art, which has been produced from a thermoplastic and dimensionally stable single-layer or multi-layer film which is preferably customary for the packaging of foods.
  • the film must have on at least one of its two surfaces a sealing layer which is peelable.
  • the sealing layer used is preferably a mixture of LDPE (low density polyethylene) and a polybutylene.
  • the mixture preferably contains 15 to 30% by weight, particularly preferably 20 to 28% by weight, of polybutylene.
  • the polybutylene has a melt index (MFI) in the range of 0.3 to 2.0 g / 10 min (190 ° C and 216 kg according to ASTM 1238).
  • the packaging tray is produced from a multilayer film with a foamed carrier film, preferably a foamed polyolefin film, particularly preferably polypropylene film.
  • the packaging tray is made of a film, as disclosed in the patent application with the file number of the German Patent Office 198 40 046.2. This patent application is hereby incorporated by reference and thus forms part of the disclosure.
  • the thermoformed, preferably thermoformed packaging trays are closed after filling with the packaged product with a specialist, familiar, preferably thermoformable lidding film.
  • lid films are multilayer films with a gas barrier layer of ethylene vinyl alcohol copolymer, preferably of polyethylene terephthalate (PET) / adhesion promoter layer / polyethylene / adhesion promoter layer / ethylene / vinyl alcohol copolymer / adhesion promoter layer / polyethylene, wherein the polyethylene terephthalate layer may be replaced by polypropylene.
  • PET polyethylene terephthalate
  • the cover film of the packaging according to the invention has the recess, it may also have SiO x as a gas barrier layer.
  • the cover sheet of PET / SiO x / adhesion promoter / polyethylene is constructed.
  • the lid film is sealed according to the invention to the packaging tray in the sealing area, wherein the lidding film is at least partially peelable sealed to the packaging tray.
  • the lidding film is heated at a temperature of from 130 ° C to 150 ° C, preferably from 135 to 145 ° C, and a pressure of from 3 to 8 x 10 5 N / m 2 , preferably from 4.0 to 5, 0 x 10 5 N / m 2 sealed to the packaging tray.
  • the solid seal is preferably carried out at a temperature at least 10 ° C. and preferably at twice the pressure in comparison to the peelable seal.
  • a solid seal in the sense of the invention is a seal in which the detachment force of the cover film must be at least five times higher than in the area of the peelable seal.
  • the sealing area on the packaging tray is preferably located on a horizontal plane, preferably above the packaged goods, and preferably extends around the entire packaged goods on this level.
  • the lidding film may be firmly sealed to preferably at least one side of this polygon with the packaging tray, while the lidding film in the remaining sealing area is peelably sealed to the packaging tray.
  • preferably 5-25% of the sealing area may be provided with a solid seal.
  • the packaging tray or the cover sheet has at least one recess, which is preferably located on the horizontal plane above the packaged goods.
  • the recess may have any shape and size, but must be compatible with the shape of the knob.
  • the recess is approximately circular with a diameter of 3 to 12 mm, preferably 4 to 9 mm.
  • the recess is preferably drilled or punched into the packaging tray or lid film, punching being particularly preferred.
  • the lidding foil or the packaging trough has at least one nub, which is arranged complementary to the recess in the packaging trough or the cover foil and whose shape must be compatible with the shape of the recess so that it can be inserted through the recess and remains there.
  • the knob has approximately the shape of a cylinder whose diameter is preferably from 3 to 12 mm and whose length is preferably from 3 to 15 mm, particularly preferably 4 to 8 mm. Most preferably, the diameter of the nub ⁇ the diameter of the approximately circular recess.
  • the nub (s) or the recess (s) is / are arranged closer to the outer edge of the plastic packaging than the sealing area.
  • the nub (s) or the complementary recess (s) are preferably attached to the plastic package so that they are outside the range of the solid seal, preferably diametrically opposite.
  • This arrangement has the advantage that the cover sheet can be stretched and then firmly but releasably connected to the / the knob fasteners.
  • the lidding film has the recess (s) and the packaging tray has the nub (s).
  • the plastic packaging according to the invention may preferably have additional means for reclosing the packaging.
  • Such means are preferably a zipper, e.g. in EP 0 621 197 A1 discloses a sealing lip, a snap closure, as disclosed in EP 0 427 512 or a hook and loop fastener as disclosed in the copending application with the internal file number CH 8006.
  • At least one subregion of at least one nub is provided with a sealing material, preferably at least one subregion of at least one nub and the edge region of the complementary recess is connected to a sealing material which is damaged when the packaging is opened for the first time.
  • the damage to the sealing material caused by the initial opening of the package is preferably carried out as a fracture and / or at least partial fall off of at least a portion of the sealing material and / or deformation of at least a portion of the sealing material, the damage preferably being detectable without technical aids is.
  • Damage that can be detected without technical aids is damage that is easy to see and / or feel. Tangible damage is of great advantage especially for visually impaired consumers.
  • the color of the sealing material differs from the color of the plastic packaging. Particular preference is given to distinct or stark color differences, for example white and black or yellow and red.
  • a damaged sealing material has a different texture from the undamaged sealing material, which is easy to feel, especially by visually impaired customers.
  • the surface of the sealing material has a different color than the sealing material itself, with damage to the sealing material resulting in visualization of the sealing material differently colored from the sealing surface.
  • the sealing material when attached to the dunnage itself, has sufficient adhesive force to secure it to a nub, preferably to a nub and the peripheral area of a complementary spall, to the storage and conventional transport of the plastic wrapping first opening the plastic packaging at least a partial separation or deformation, preferably a break and particularly preferably causes the complete separation of the sealing material of the plastic packaging.
  • a sufficient adhesion force may optionally be realized by dissolving with a solvent and / or heating.
  • the sealing materials used are natural or synthetic waxes or plastics. Particularly preferred are plastics that cure under the influence of air and / or heat and / or radiation so that the sealing material is so brittle that it is easy to damage.
  • the sealing materials are self-adhesive. Particularly preferred in this case are sealing materials which are self-adhesive in the heated state.
  • sealing materials are applied by means of an adhesive material to at least one nub, preferably at least one nub and the edge region of the complementary recess.
  • sealing materials which are so brittle that they break when the package is opened for the first time.
  • the packages provided with nubs according to the invention are resealable.
  • Foodstuffs preferably solid, particularly preferably fresh or cooked meat or sausage products, are particularly preferably packaged in the packaging according to the invention.
  • the plastic packaging according to the invention is preferably produced by the packaging tray is formed by deep drawing a film. Thereafter, or at the same time, a recess is made in the packaging tray, preferably formed by punching, or by thermoforming a nub.
  • the packaging tray is optionally filled and then sealed a lid sheet on the packaging tray, wherein prior to sealing optionally a gas exchange to extend the shelf life of the food in the packaging is made.
  • at least one nub is preferably produced by thermoforming of the cover film or at least one recess is punched out.
  • the production of a nub takes place preferably with a stamp or with compressed air, with the / with which the material to be deformed is pressed through the recess.
  • a sealing material is applied to at least one nub, preferably a nub, and the edge region of the complementary recess.
  • the packages according to the invention make it possible for the consumer to quickly and unambiguously recognize the original packaging state of their product. Particularly in the case of food packagings which have been originally packaged in an airtight manner and which have been resealed after initial opening, the consumer can infer the integrity or damage of the sealing material to the condition of the contents of the pack without having to inspect the product itself or thoroughly examine it.
  • a plastic packaging which can be reclosed by at least one pimple according to the invention, it is possible to seal a once-opened packaging in a good and yet releasable manner. The closing or opening is easy for the user to carry out.
  • the plastic packaging is simple and inexpensive to manufacture.
  • Figure 1 shows a provided with knobs plastic packaging.
  • Figure 2 shows another provided with knobs plastic packaging.
  • FIG. 3 shows sections of the plastic packaging according to the invention before and after opening.
  • FIG. 1 shows a plastic packaging 1 according to the invention, which consists of a packaging tray 2 and a cover film 3.
  • the packaging has a sealing area 4, which is arranged horizontally and extends around the entire packaging cavity 2 around.
  • this sealing area 4 the lidding film 3 sealed to the packaging tray 2, wherein the lidding film is peelably sealed in the weakly dotted portion of the sealing area 4 to the packaging tray, while it is sealed in the highly dotted portion of the sealing area 4 to the packaging tray.
  • the lidding foil is pulled off the packaging tray only on three sides and remains connected to it in the section of the solid seal.
  • the lidding film a semi-rigid polyethylene terephthalate / EVOH / polyethylene-polybutylene film, has two approximately cylindrical knobs that are 4 mm in length and 7 mm in diameter.
  • the nubs 5 have been embossed by thermoforming with a stamp in the lidding film.
  • the packaging tray 2 has two approximately circular recesses 6, which are arranged opposite the knobs 5 and have a diameter of 7 mm.
  • the nubs 5 and recesses 6 can also be arranged at other locations of the plastic packaging and / or in addition to the illustrated two even more nubs / recesses may be present.
  • further reclosing means may be disposed on the packaging tray or lid film. After opening the cover film, the package can be closed again by the nubs 5 are pressed into the recesses 6 and remain there until the cover sheet pulled off again and the knobs are pulled out of the recesses.
  • FIG. 2 shows a plastic packaging 1 according to FIG. 1, but with the nubs 5 in the packaging trough 4 and the recess 6 in the cover film 3.
  • Figures 3 A to F show sections of the plastic packaging according to the invention before and after opening in side view.
  • Figure 3 A shows a nub 5, of which a partial area is provided with sealing material 9.
  • FIG. 3B shows a nub 5, of which a partial area is provided with sealing material 9, wherein the sealing material forms a connection between the nub 5 and the edge area of the recess 7 complementary to the nub.
  • FIG. 3C shows the article of FIG. 3A after the sealing material 9 has been damaged by breakage when a package 1 is first opened.
  • FIG. 3D shows the article of FIG. 3B after the sealing material 9 has been damaged by breakage during the first opening of a package 1.
  • FIG. 3E shows the article of FIG. 3A after the sealing material 9 has been damaged by deformation when a package 1 is opened for the first time.
  • FIG. 3F shows the article of FIG. 3B after the sealing material 9 has been damaged by deformation when a package 1 is opened for the first time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Closures For Containers (AREA)
  • Laminated Bodies (AREA)

Claims (16)

  1. Emballage en plastique (1) constitué d'une barquette d'emballage (2) et d'une feuille de recouvrement (3), la feuille de recouvrement (3) étant scellée sur la barquette d'emballage de manière pelable au moins en partie et la feuille de recouvrement (3) ou la barquette d'emballage (2) présentant au moins un bouton (5) et la barquette d'emballage (2) ou la feuille de recouvrement (3) présentant, de manière complémentaire à ce bouton, au moins un évidement (6) à travers lequel le ou les bouton(s) est ou sont enfoncé(s) lors de la fermeture de l'emballage en plastique,
    caractérisé en ce
    qu'au moins une région partielle d'au moins un bouton (5) est pourvue d'un matériau de scellement (9) ou de préférence au moins une région partielle d'au moins un bouton (5) et la région de bord de l'évidement complémentaire (7) sont connectées avec un matériau de scellement (9) qui est endommagé lors de la première ouverture de l'emballage.
  2. Emballage en plastique (1) selon la revendication 1, caractérisé en ce que l'endommagement est une rupture, une chute au moins partielle et/ou une déformation du matériau de scellement (9).
  3. Emballage en plastique (1) selon la revendication 1 ou 2, caractérisé en ce que l'endommagement peut être reconnu sans moyens auxiliaires techniques.
  4. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le matériau de scellement (9) présente une couleur qui est différente de la couleur de l'emballage en plastique (1), de préférence qui en est très différente.
  5. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le matériau de scellement (9) présente lui-même une couleur et la surface du matériau de scellement (9) présente une autre couleur, la première ouverture de l'emballage en plastique (1) endommageant la couleur de la surface du matériau de scellement (1) dans une mesure telle que la couleur du matériau de scellement (9) sous-jacent soit visible.
  6. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le matériau de scellement (9) présente une force d'adhésion suffisante, qui garantit la fixation à un bouton (5), de préférence à un bouton (5) et à la région de bord d'un évidement complémentaire (7), le stockage et le transport usuel de l'emballage en plastique, la première ouverture de l'emballage en plastique (1) provoquant au moins une chute partielle et/ou une déformation, de préférence une rupture et en particulier de préférence la chute complète du matériau de scellement (9) de l'emballage en plastique (1).
  7. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le matériau de scellement (9) est une cire naturelle on synthétique ou un plastique, de préférence un plastique, qui durcit à l'air et/ou à la chaleur et/ou sous l'effet d'un rayonnement, de telle sorte que le matériau de scellement (9) devienne cassant de telle sorte qu'il soit facile à endommager par l'ouverture de l'emballage (1).
  8. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le matériau de scellement (9) est autocollant, de préférence autocollant dans l'état chauffé.
  9. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le matériau de scellement (9) est appliqué sur au moins un bouton (5), de préférence au moins un bouton (5) et la région de bord de l'évidement complémentaire (7), avec un matériau adhésif.
  10. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le matériau de scellement (9) est cassant et se rompt lors de la première ouverture de l'emballage en plastique (1).
  11. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'emballage (1) est refermable, de préférence refermable par l'introduction d'au moins un bouton (5) dans un évidement (6).
  12. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la feuille de recouvrement (3) se compose d'une feuille thermoformable en polyéthylène téréphtalate ou en polypropylène éventuellement avec une couche barrière en copolymère éthylène alcool vinylique et en polyéthylène, et la barquette d'emballage (2) se compose d'une feuille de polyoléfine moussée, de préférence d'une feuille de polypropylène moussée en tant que couche de base avec éventuellement une couche barrière contre le gaz et une couche de scellement pelable.
  13. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la région de scellement (4) est complètement pelable.
  14. Emballage en plastique (1) selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'un côté ou bien 5 à 25% de la région de scellement est scellé(e) fixement.
  15. Emballage en plastique (1) selon la revendication 14, caractérisé en ce que le ou les bouton(s) (5) et le ou les évidement(s) correspondant(s) (6) se trouve(nt) en dehors de la région de scellement fixe.
  16. Procédé de fabrication d'un emballage en plastique selon l'une quelconque des revendications 1 à 15, caractérisé en ce que :
    1. la barquette d'emballage est fabriquée par thermoformage à partir d'une feuille, soit
    2. au moins un évidement est pratiqué dans la barquette d'emballage, de préférence par estampage,
    3. la barquette d'emballage est éventuellement remplie,
    4. une feuille de recouvrement est scellée sur la barquette d'emballage et
    5. le bouton complémentaire est fabriqué par thermoformage de la feuille de recouvrement,
    soit
    2a.au moins un bouton est formé dans la région de bord de la barquette d'emballage formée selon 1., et
    4a.dans la feuille de recouvrement ou lors du scellement avec la barquette d'emballage, on réalise au moins un emballage complémentaire,
    caractérisé en ce
    qu'au moins une région partielle d'au moins un bouton (5) est pourvue d'un matériau de scellement (9) ou de préférence au moins une région partielle d'au moins un bouton (5) et la région de bord de l'évidement complémentaire (7) sont connectées avec un matériau de scellement (9) qui est endommagé lors de la première ouverture de l'emballage.
EP02735254A 2001-04-25 2002-04-13 Emballage plastique comportant au moins un bouton scelle Expired - Lifetime EP1385755B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10120366A DE10120366A1 (de) 2001-04-25 2001-04-25 Kunststoffverpackung mit mindestens einer versiegelten Noppe
DE10120366 2001-04-25
PCT/EP2002/004140 WO2002087992A1 (fr) 2001-04-25 2002-04-13 Emballage plastique comportant au moins un bouton scelle

Publications (2)

Publication Number Publication Date
EP1385755A1 EP1385755A1 (fr) 2004-02-04
EP1385755B1 true EP1385755B1 (fr) 2006-07-12

Family

ID=7682738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735254A Expired - Lifetime EP1385755B1 (fr) 2001-04-25 2002-04-13 Emballage plastique comportant au moins un bouton scelle

Country Status (6)

Country Link
US (1) US7322473B2 (fr)
EP (1) EP1385755B1 (fr)
AT (1) ATE332855T1 (fr)
DE (2) DE10120366A1 (fr)
NO (1) NO20034772L (fr)
WO (1) WO2002087992A1 (fr)

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ATE332855T1 (de) 2006-08-15
DE10120366A1 (de) 2002-10-31
NO20034772D0 (no) 2003-10-24
WO2002087992A1 (fr) 2002-11-07
EP1385755A1 (fr) 2004-02-04
NO20034772L (no) 2003-12-18
US7322473B2 (en) 2008-01-29
US20040154948A1 (en) 2004-08-12

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