FR2380874A1 - Bande de feuille plastique renforcee par bandelettes, notamment pour la fabrication de sacs - Google Patents
Bande de feuille plastique renforcee par bandelettes, notamment pour la fabrication de sacsInfo
- Publication number
- FR2380874A1 FR2380874A1 FR7803467A FR7803467A FR2380874A1 FR 2380874 A1 FR2380874 A1 FR 2380874A1 FR 7803467 A FR7803467 A FR 7803467A FR 7803467 A FR7803467 A FR 7803467A FR 2380874 A1 FR2380874 A1 FR 2380874A1
- Authority
- FR
- France
- Prior art keywords
- plastic sheet
- manufacture
- strip
- stripes
- bags
- 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- Withdrawn
Links
- 239000002985 plastic film Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000002990 reinforced plastic Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
- B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
- B29C66/72141—Fibres of continuous length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
- B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
- Y10T428/24074—Strand or strand-portions
- Y10T428/24091—Strand or strand-portions with additional layer[s]
- Y10T428/24099—On each side of strands or strand-portions
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24752—Laterally noncoextensive components
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24777—Edge feature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Making Paper Articles (AREA)
- Bag Frames (AREA)
- Replacement Of Web Rolls (AREA)
Abstract
Bande continue en feuille plastique renforcée, constituée par au moins une feuille plastique sur laquelle est fixée une nappe de bandelettes s'étendant en zig-zag sur la largeur de la nappe et se croisant. Les boucles formant les points de rebroussement des bandelettes sont recouvertes par la feuille plastique au moins d'un côté de celle-ci. Applicable notamment à la fabrication de sacs de grande capacité susceptibles de résister à des efforts importants.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772707584 DE2707584A1 (de) | 1977-02-22 | 1977-02-22 | Gelegeverstaerkte folienbahn |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2380874A1 true FR2380874A1 (fr) | 1978-09-15 |
Family
ID=6001861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7803467A Withdrawn FR2380874A1 (fr) | 1977-02-22 | 1978-02-08 | Bande de feuille plastique renforcee par bandelettes, notamment pour la fabrication de sacs |
Country Status (11)
Country | Link |
---|---|
US (1) | US4161559A (fr) |
JP (1) | JPS53104377A (fr) |
AT (1) | AT349981B (fr) |
BR (1) | BR7800291A (fr) |
DE (1) | DE2707584A1 (fr) |
ES (1) | ES243089Y (fr) |
FI (1) | FI780020A (fr) |
FR (1) | FR2380874A1 (fr) |
GB (1) | GB1584233A (fr) |
IT (1) | IT1092036B (fr) |
SU (1) | SU751317A3 (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4325999A (en) * | 1979-11-23 | 1982-04-20 | Hitco | Bias fabric |
US4397703A (en) * | 1981-10-01 | 1983-08-09 | Mobil Oil Corporation | Method and apparatus for manufacture of laminated reinforced film |
US4467506A (en) * | 1981-10-01 | 1984-08-28 | Mobil Oil Corporation | Apparatus for forming and advancing transverse yarn reaches |
US4421805A (en) * | 1982-04-29 | 1983-12-20 | Mobil Oil Corporation | Slip-resistant shipping sacks |
DE3502151A1 (de) * | 1985-01-23 | 1986-07-24 | Windmöller & Hölscher, 4540 Lengerich | Verfahren zum herstellen von saecken aus thermoplatischem kunststoff |
GB8726630D0 (en) * | 1987-11-13 | 1987-12-16 | Holroyd Associates Ltd | Reinforced polymeric article |
KR100320567B1 (ko) * | 1992-05-18 | 2002-06-20 | 액정광변조장치및재료 | |
DE4217708A1 (de) * | 1992-06-01 | 1993-12-02 | Christian Schlesinger | Kunststoffolienschlauch aus elastischem Polyester |
DE9312664U1 (de) * | 1993-08-24 | 1993-11-25 | Hassia Verpackung Ag | Schlauchbeutelpackung |
US5891541A (en) * | 1996-06-18 | 1999-04-06 | Reef Industries, Inc. | Forming a continuous reinforced composite material |
US6107220A (en) | 1996-10-18 | 2000-08-22 | E. I. Du Pont De Nemours And Company | Rapid fabric forming |
AT413546B (de) * | 2003-03-11 | 2006-03-15 | Starlinger & Co Gmbh | Gelege aus kunststoffbändchen sowie verfahren und vorrichtung zu dessen herstellung |
AT9823U1 (de) * | 2007-09-10 | 2008-04-15 | Starlinger & Co Gmbh | Beschichtetes gewebe aus monoaxial verstreckten kunststoffbändchen und daraus hergestellter sack |
US7665149B2 (en) * | 2008-05-14 | 2010-02-23 | E.I. Du Pont De Nemours And Company | Ballistic resistant body armor articles |
EP2353847A1 (fr) * | 2010-01-28 | 2011-08-10 | Stichting Nationaal Lucht- en Ruimtevaart Laboratorium | Procédé de fabrication d'un matériau composite, structure, matériau composite et produit final |
FR2975939B1 (fr) * | 2011-06-01 | 2014-05-09 | Hexcel Reinforcements | Ruban voile presentant une resistance au delaminage amelioree |
US10596746B1 (en) * | 2016-03-11 | 2020-03-24 | R. H. Tamlyn & Sons | House wrap and method of manufacture |
USD901801S1 (en) * | 2018-03-19 | 2020-11-10 | Kimberly-Clark Worldwide, Inc. | Cleaning wipe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3272679A (en) * | 1961-09-14 | 1966-09-13 | Hebberling Friedrich | Apparatus for forming reinforced sheet material |
FR1561671A (fr) * | 1967-04-21 | 1969-03-28 | ||
US3791911A (en) * | 1972-02-23 | 1974-02-12 | Griffolyn Company | Adhesive free fiber reinforced laminate |
DE2514105A1 (de) * | 1975-03-29 | 1976-10-07 | Hoechst Ag | Verstaerkte folien, verfahren und vorrichtung zu deren kontinuierlichen herstellung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123279A (en) * | 1964-03-03 | Plastic bag | ||
BE631067A (fr) * | 1962-04-16 | 1900-01-01 | ||
US3332831A (en) * | 1965-02-08 | 1967-07-25 | Sto Cote Products Inc | Method and construction of joining together reinforced sheets of plastic |
US3598166A (en) * | 1968-06-06 | 1971-08-10 | Deering Milliken Res Corp | Endless reinforcement for pneumatic tires |
US3729365A (en) * | 1970-09-03 | 1973-04-24 | Deering Milliken Res Corp | Endless reinforcement and method for producing same |
US4041202A (en) * | 1970-09-15 | 1977-08-09 | Williams Robert E | Strippable tape |
US3959544A (en) * | 1973-12-26 | 1976-05-25 | Rogers Charles W | Filamentary tape constructions and methods |
US4002789A (en) * | 1974-01-10 | 1977-01-11 | Deering Milliken Research Corporation | Endless reinforcement |
DE2524369A1 (de) * | 1975-06-02 | 1976-12-16 | Niedermayr Papierwarenfabrik | Sack, beutel oder dergleichen und verfahren zu seiner herstellung |
-
1977
- 1977-02-22 DE DE19772707584 patent/DE2707584A1/de active Granted
- 1977-12-28 AT AT936777A patent/AT349981B/de not_active IP Right Cessation
- 1977-12-29 SU SU772559004A patent/SU751317A3/ru active
-
1978
- 1978-01-04 FI FI780020A patent/FI780020A/fi not_active Application Discontinuation
- 1978-01-17 GB GB1826/78A patent/GB1584233A/en not_active Expired
- 1978-01-18 BR BR7800291A patent/BR7800291A/pt unknown
- 1978-01-25 JP JP713578A patent/JPS53104377A/ja active Pending
- 1978-01-30 IT IT7819777A patent/IT1092036B/it active
- 1978-02-01 US US05/874,156 patent/US4161559A/en not_active Expired - Lifetime
- 1978-02-08 FR FR7803467A patent/FR2380874A1/fr not_active Withdrawn
- 1978-02-21 ES ES1978243089U patent/ES243089Y/es not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3272679A (en) * | 1961-09-14 | 1966-09-13 | Hebberling Friedrich | Apparatus for forming reinforced sheet material |
FR1561671A (fr) * | 1967-04-21 | 1969-03-28 | ||
US3791911A (en) * | 1972-02-23 | 1974-02-12 | Griffolyn Company | Adhesive free fiber reinforced laminate |
DE2514105A1 (de) * | 1975-03-29 | 1976-10-07 | Hoechst Ag | Verstaerkte folien, verfahren und vorrichtung zu deren kontinuierlichen herstellung |
FR2306063A1 (fr) * | 1975-03-29 | 1976-10-29 | Hoechst Ag | Feuilles renforcees, procede et appareil pour leur fabrication |
Also Published As
Publication number | Publication date |
---|---|
ATA936777A (de) | 1978-09-15 |
JPS53104377A (en) | 1978-09-11 |
ES243089Y (es) | 1980-01-01 |
SU751317A3 (ru) | 1980-07-23 |
BR7800291A (pt) | 1978-10-10 |
GB1584233A (en) | 1981-02-11 |
US4161559A (en) | 1979-07-17 |
DE2707584A1 (de) | 1978-08-24 |
IT1092036B (it) | 1985-07-06 |
AT349981B (de) | 1979-05-10 |
ES243089U (es) | 1979-07-16 |
DE2707584C2 (fr) | 1989-04-27 |
FI780020A (fi) | 1978-08-23 |
IT7819777A0 (it) | 1978-01-30 |
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