DK161949C - Fremgangsmaade og udstyr for ekstrudering af dobbelt-vaeggede plastroer med indikatorstrimmel - Google Patents
Fremgangsmaade og udstyr for ekstrudering af dobbelt-vaeggede plastroer med indikatorstrimmelInfo
- Publication number
- DK161949C DK161949C DK534886A DK534886A DK161949C DK 161949 C DK161949 C DK 161949C DK 534886 A DK534886 A DK 534886A DK 534886 A DK534886 A DK 534886A DK 161949 C DK161949 C DK 161949C
- Authority
- DK
- Denmark
- Prior art keywords
- wicked
- plastics
- procedure
- equipment
- indicator strip
- Prior art date
Links
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
- B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
- B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
- B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/20—Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/19—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
-
- 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
- B29L2016/00—Articles with corrugations or pleats
-
- 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
- B29L2023/18—Pleated or corrugated hoses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8501213A SE446954B (sv) | 1985-03-12 | 1985-03-12 | Sett vid extrudering av ett dubbelveggigt plastror samt extruderingsverktyg for utovning av settet |
SE8501213 | 1985-03-12 | ||
SE8600103 | 1986-03-11 | ||
PCT/SE1986/000103 WO1986005437A1 (en) | 1985-03-12 | 1986-03-11 | Method and device for extrusion of a double wall plastics pipe |
Publications (4)
Publication Number | Publication Date |
---|---|
DK534886D0 DK534886D0 (da) | 1986-11-07 |
DK534886A DK534886A (da) | 1986-11-12 |
DK161949B DK161949B (da) | 1991-09-02 |
DK161949C true DK161949C (da) | 1992-02-03 |
Family
ID=20359462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK534886A DK161949C (da) | 1985-03-12 | 1986-11-07 | Fremgangsmaade og udstyr for ekstrudering af dobbelt-vaeggede plastroer med indikatorstrimmel |
Country Status (9)
Country | Link |
---|---|
US (2) | US4790975A (ja) |
AU (1) | AU605742B2 (ja) |
DE (2) | DE3690120T1 (ja) |
DK (1) | DK161949C (ja) |
FI (1) | FI80233C (ja) |
GB (1) | GB2183202B (ja) |
NO (1) | NO176393C (ja) |
SE (1) | SE446954B (ja) |
WO (1) | WO1986005437A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE446954B (sv) * | 1985-03-12 | 1986-10-20 | Uponor Ab | Sett vid extrudering av ett dubbelveggigt plastror samt extruderingsverktyg for utovning av settet |
US4770618A (en) * | 1986-01-15 | 1988-09-13 | Lupke Manfred Arno Alfred | Extrusion die for two-ply plastic tubing |
SE453374B (sv) * | 1986-06-23 | 1988-02-01 | Uponor Ab | Sett att genom vermesvetsning skarva ror med en korrugerad vegg |
DE4111229A1 (de) * | 1991-04-08 | 1992-10-15 | Wilhelm Hegler | Vorrichtung zur herstellung von kunststoff-rohren |
FI96396C (fi) * | 1992-12-28 | 1996-06-25 | Uponor Bv | Menetelmä kaksikerroksisen muoviputken muodostamiseksi aineensiirtoa varten ja menetelmällä muodostettu kaksikerroksinen muoviputki |
US5431866A (en) * | 1994-01-27 | 1995-07-11 | Phillips Petroleum Company | Method and apparatus for positioning a pipe |
US5562254A (en) * | 1994-08-02 | 1996-10-08 | Environment One Corp. | Grinder pump station |
US5518036A (en) * | 1994-09-29 | 1996-05-21 | Phillips Petroleum Company | Multi-layer plastic pipe and method and apparatus for extrusion thereof |
JP3331376B2 (ja) * | 1995-02-14 | 2002-10-07 | 金尾 茂樹 | ケーブル保護管 |
US5653555A (en) | 1995-05-19 | 1997-08-05 | Inliner, U.S.A. | Multiple resin system for rehabilitating pipe |
US5699838A (en) | 1995-05-22 | 1997-12-23 | Inliner, U.S.A. | Apparatus for vacuum impregnation of a flexible, hollow tube |
JP3120169B2 (ja) * | 1996-04-10 | 2000-12-25 | 東拓工業株式会社 | ワイヤーハーネス用プロテクタ |
JPH09280430A (ja) * | 1996-04-10 | 1997-10-31 | Toutaku Kogyo Kk | 樹脂製波形管 |
US6294119B1 (en) | 1997-12-26 | 2001-09-25 | Bridgestone Corporation | Production of unvulcanized tread rubber for pneumatic tires |
US20040226623A1 (en) * | 1999-10-12 | 2004-11-18 | Oem/Miller, A Division Of Holm Industries | Dual wall co-extruded corrugated tubing |
US6142188A (en) * | 1999-10-29 | 2000-11-07 | Dayco Products, Inc. | Corrugated flexible hose |
CN2728745Y (zh) * | 2003-01-10 | 2005-09-28 | 曼夫瑞德·A·A·鲁波克 | 用于模制塑料管的装置 |
US20060213567A1 (en) * | 2005-03-25 | 2006-09-28 | Parpart David B | Non-whistling vent tube |
DE102017105807B3 (de) | 2017-03-17 | 2018-08-16 | Schlemmer Holding GmbH | Mehrkomponenten-Extrusionsspritzkopf, Mehrkomponenten-Extrusionsanlage und Verfahren zum Herstellen eines Verbundschlauchs |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB354837A (en) * | 1930-05-17 | 1931-08-17 | Erinoid Ltd | Improvements in or relating to apparatus for extruding plastic materials |
US2141776A (en) * | 1933-11-03 | 1938-12-27 | Du Pont | Cellulosic structure and method for preparing same |
GB728025A (en) * | 1952-08-20 | 1955-04-13 | Plastar S A Com E Ind De Mater | Apparatus for the production of plates, sheets or tubes of thermoplastic materials having stripes of two or more colours |
US2808617A (en) * | 1952-09-05 | 1957-10-08 | Terracini Vittorio | Means for molding lengthy articles made from multi-colored plastic material |
NL277033A (ja) * | 1961-04-10 | 1900-01-01 | ||
US3266093A (en) * | 1964-09-14 | 1966-08-16 | Nat Distillers Chem Corp | Apparatus for producing laminated products |
DE1479151B2 (de) * | 1965-08-27 | 1972-02-17 | Etimex Kunststoffwerke Gmbh, 7000 Stuttgart | Strangpresskopf zum herstellen einer offenen oder schlauchfoer migen kunststoffbahn mit einseitig angeordneten verschluss rippen |
DE1779949C3 (de) * | 1965-08-27 | 1974-12-19 | Etimex Kunststoffwerke Gmbh, 7000 Stuttgart | Verfahren und Extrudierwerkzeug zum Herstellen einer offenen oder schlauchartigen Kunststoffbahn. Ausscheidung aus: 1479151 |
US3443278A (en) * | 1965-10-22 | 1969-05-13 | Rowland Products Inc | Apparatus for extruding multicolored sheet material |
AT325299B (de) * | 1967-02-27 | 1975-10-10 | Hegler Wilhelm | Vorrichtung zur herstellung von rohren aus thermoplastischem kunststoff |
GB1392291A (en) * | 1971-05-19 | 1975-04-30 | Creators Ltd | Reinforced tubes of plastics or elastomeric materials |
US3743456A (en) * | 1971-08-20 | 1973-07-03 | Acme Hamilton Mfg Corp | Adjustable die heads for extruders and the like |
CA1007015A (en) * | 1971-09-27 | 1977-03-22 | Walter J. Schrenk | Coextrusion apparatus |
JPS521869B2 (ja) * | 1972-07-11 | 1977-01-18 | ||
US3994646A (en) * | 1974-01-25 | 1976-11-30 | Frankische Isolierrohr-Und Metallwaren Werke Gebr. Kirchner | Apparatus for producing double-walled tubes of plastic material |
FR69963E (fr) * | 1974-03-22 | 1959-01-30 | Onera (Off Nat Aerospatiale) | Appareil pour le dépouillement d'enregistrements |
DE2413877C3 (de) * | 1974-03-22 | 1979-02-01 | Hegler, Wilhelm, 8730 Bad Kissingen | Extrusionskopf zum kontinuierlichen Ummanteln eines Rohres oder Kabels |
JPS5422465A (en) * | 1977-07-21 | 1979-02-20 | Teraoka Shoichi | Method of molding oneebody mold goods from plural members |
US4296157A (en) * | 1978-12-05 | 1981-10-20 | Conti Allen C | Tube with weakened side wall segment |
US4248824A (en) * | 1979-01-24 | 1981-02-03 | Alcan Aluminum Corporation | Method and apparatus for striping extruded polymer products |
US4540537A (en) * | 1979-03-30 | 1985-09-10 | Union Carbide Corporation | Method and extruding die apparatus for producing a plastic closure strip |
US4276250A (en) * | 1979-10-29 | 1981-06-30 | Sherwood Medical Industries, Inc. | Apparatus and method for producing tubular extrusions having axial sections of materials having different characteristics |
US4312383A (en) * | 1980-04-21 | 1982-01-26 | Dayco Corporation | Hose construction and apparatus for and method of making same |
US4330497A (en) * | 1981-01-19 | 1982-05-18 | Sherwood Medical Industries Inc. | Method of making grooved plastic medical tubing |
DE3122043C2 (de) * | 1981-05-29 | 1984-06-14 | Mannesmann AG, 4000 Düsseldorf | Verfahren zum Ummanteln eines Stahlrohres |
US4562023A (en) * | 1981-08-18 | 1985-12-31 | Dynamit Nobel Aktiengesellschaft | Process and apparatus for producing a synthetic resin sheet having a colored band of varying color intensity |
CA1172813A (en) * | 1982-06-16 | 1984-08-21 | Lupke, Manfred A. A. | Apparatus for producing multi-walled thermoplastic tubing |
SE446954B (sv) * | 1985-03-12 | 1986-10-20 | Uponor Ab | Sett vid extrudering av ett dubbelveggigt plastror samt extruderingsverktyg for utovning av settet |
KR960009454B1 (en) * | 1987-06-03 | 1996-07-19 | Ericssonge Ge Mobile Communica | Public tracking system |
-
1985
- 1985-03-12 SE SE8501213A patent/SE446954B/sv not_active IP Right Cessation
-
1986
- 1986-03-11 DE DE19863690120 patent/DE3690120T1/de active Pending
- 1986-03-11 US US07/002,404 patent/US4790975A/en not_active Expired - Fee Related
- 1986-03-11 GB GB8626822A patent/GB2183202B/en not_active Expired
- 1986-03-11 WO PCT/SE1986/000103 patent/WO1986005437A1/en active IP Right Grant
- 1986-03-11 DE DE3690120A patent/DE3690120C2/de not_active Expired - Fee Related
- 1986-03-11 AU AU55886/86A patent/AU605742B2/en not_active Ceased
- 1986-11-07 DK DK534886A patent/DK161949C/da not_active IP Right Cessation
- 1986-11-11 NO NO864497A patent/NO176393C/no unknown
- 1986-11-11 FI FI864577A patent/FI80233C/fi not_active IP Right Cessation
-
1988
- 1988-12-12 US US07/283,373 patent/US4933134A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3690120C2 (ja) | 1993-02-18 |
GB2183202B (en) | 1989-07-05 |
US4790975A (en) | 1988-12-13 |
NO176393B (no) | 1994-12-19 |
DK534886D0 (da) | 1986-11-07 |
NO176393C (no) | 1995-03-29 |
SE8501213L (ja) | 1986-09-13 |
WO1986005437A1 (en) | 1986-09-25 |
GB8626822D0 (en) | 1986-12-10 |
AU605742B2 (en) | 1991-01-24 |
FI80233C (fi) | 1990-05-10 |
FI80233B (fi) | 1990-01-31 |
DK161949B (da) | 1991-09-02 |
DE3690120T1 (ja) | 1987-04-23 |
SE8501213D0 (sv) | 1985-03-12 |
AU5588686A (en) | 1986-10-13 |
NO864497D0 (no) | 1986-11-11 |
SE446954B (sv) | 1986-10-20 |
NO864497L (no) | 1987-01-09 |
GB2183202A (en) | 1987-06-03 |
DK534886A (da) | 1986-11-12 |
US4933134A (en) | 1990-06-12 |
FI864577A (fi) | 1986-11-11 |
FI864577A0 (fi) | 1986-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |