ES271621Y - Una seccion de tuberia formada de una cinta de termoplastico arrollada helicoidalmente - Google Patents
Una seccion de tuberia formada de una cinta de termoplastico arrollada helicoidalmenteInfo
- Publication number
- ES271621Y ES271621Y ES1981271621U ES271621U ES271621Y ES 271621 Y ES271621 Y ES 271621Y ES 1981271621 U ES1981271621 U ES 1981271621U ES 271621 U ES271621 U ES 271621U ES 271621 Y ES271621 Y ES 271621Y
- Authority
- ES
- Spain
- Prior art keywords
- section formed
- piping section
- thermoplastic tape
- helically rolled
- rolled thermoplastic
- 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
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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
- B29C69/002—Winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/16—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/12—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
- B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
-
- 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
-
- 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
-
- 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
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
-
- 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
- Y10S277/00—Seal for a joint or juncture
- Y10S277/91—O-ring seal
-
- 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
- Y10S285/00—Pipe joints or couplings
- Y10S285/903—Corrugated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Wire Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/175,473 US4362187A (en) | 1980-08-05 | 1980-08-05 | Spirally-formed thermoplastic tube |
Publications (2)
Publication Number | Publication Date |
---|---|
ES271621U ES271621U (es) | 1984-01-16 |
ES271621Y true ES271621Y (es) | 1984-08-01 |
Family
ID=22640357
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES1981271621U Expired ES271621Y (es) | 1980-08-05 | 1981-08-04 | Una seccion de tuberia formada de una cinta de termoplastico arrollada helicoidalmente |
ES513649A Granted ES513649A0 (es) | 1980-08-05 | 1982-07-01 | "perfeccionamientos introducidos en una seccion de tuberia formada de una cinta de termoplastico arrollada helicoidalmente". |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES513649A Granted ES513649A0 (es) | 1980-08-05 | 1982-07-01 | "perfeccionamientos introducidos en una seccion de tuberia formada de una cinta de termoplastico arrollada helicoidalmente". |
Country Status (11)
Country | Link |
---|---|
US (1) | US4362187A (es) |
EP (1) | EP0056811A1 (es) |
JP (1) | JPS57501229A (es) |
AR (1) | AR230694A1 (es) |
AU (1) | AU543229B2 (es) |
BE (1) | BE889852A (es) |
BR (1) | BR8105016A (es) |
CA (1) | CA1167879A (es) |
ES (2) | ES271621Y (es) |
NO (1) | NO821094L (es) |
WO (1) | WO1982000452A1 (es) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565520B1 (fr) * | 1984-06-08 | 1986-09-05 | Sireix Georges | Dispositif de coupe automatique des tubes en carton et autres |
FI71194C (fi) * | 1985-07-30 | 1986-11-24 | Uponor Ab | Plastroer |
US4714508A (en) * | 1986-03-25 | 1987-12-22 | Alopex Industries, Inc. | Fixture and method for making spiral wound hose |
DE3603481A1 (de) * | 1986-02-05 | 1987-08-06 | Wilhelm Hegler | Kunststoff-wellrohr mit angeformter steck-muffe |
US4753833A (en) * | 1986-09-26 | 1988-06-28 | Fishgal Semyon I | Hollow article with zigzag projections |
US4804019A (en) * | 1987-02-12 | 1989-02-14 | Kramer Jr Vance M | End adaptor for flexible corrugated tube |
DE3744510A1 (de) * | 1987-12-30 | 1989-07-13 | Wilhelm Hegler | Rohrverbindungs-element |
US5120153A (en) * | 1988-11-07 | 1992-06-09 | Vassallo Research And Development Corp. | Fitting socket with integral reinforcing ring |
CH676690A5 (es) * | 1989-01-17 | 1991-02-28 | Ametex Ag | |
US5526847A (en) * | 1989-06-21 | 1996-06-18 | Vinidex Tubemakers Pty. Limited | Pipes with integral sockets |
US5027590A (en) * | 1990-02-26 | 1991-07-02 | Stark Max L | Lawn mower attachment |
US5099888A (en) * | 1990-06-04 | 1992-03-31 | Vassallo Research And Development Corporation | Impact protected, sealed, double-walled pipe body |
CA2032729A1 (en) * | 1990-12-19 | 1992-06-20 | Stefan Alexander Lupke | Coupling for ribbed pipe |
US5348051A (en) * | 1992-01-24 | 1994-09-20 | Kallenbach D H F | Flexible swimming pool cleaner hose |
US5463187A (en) * | 1992-09-30 | 1995-10-31 | The George Ingraham Corp. | Flexible multi-duct conduit assembly |
GB2280889B (en) * | 1993-08-12 | 1998-04-01 | Royal Ordnance Plc | Hollow elongated or tubular bodies and their manufacture |
US5415725A (en) * | 1994-07-01 | 1995-05-16 | Scharf; Gary | Device for removing glued down carpet |
FR2743327B1 (fr) * | 1996-01-08 | 1999-01-08 | Isotub Coating | Procede pour le lestage de tubes, notamment de tubes destines a etre immerges, ainsi que l'installation pour sa mise en oeuvre et les tubes obtenus |
US5765880A (en) * | 1996-10-07 | 1998-06-16 | Advanced Drainage Systems, Inc. | Pipe coupler |
US5810054A (en) * | 1996-12-06 | 1998-09-22 | Imi Cornelius Inc. | Tubing end and method for forming |
DE19724113A1 (de) * | 1997-06-09 | 1998-12-10 | Ralph Peter Dr Hegler | Verbundrohr mit angeformter Rohr-Muffe und Verfahren zu dessen Herstellung |
US6306235B1 (en) * | 1997-10-16 | 2001-10-23 | Nomaco, Inc. | Spiral formed products and method of manufacture |
US6199592B1 (en) * | 1999-02-05 | 2001-03-13 | Hancor, Inc. | Pipe structure and method of manufacture |
DE19944696A1 (de) * | 1999-09-17 | 2001-03-22 | Drossbach Gmbh & Co Kg | Vorrichtung zum Trennen von Rohren |
US6994381B1 (en) | 2000-07-20 | 2006-02-07 | Contech Construction Products Inc. | Stab joint coupling |
US6581363B1 (en) | 2001-11-30 | 2003-06-24 | Martin Hall, Inc. | Mower deck cleaner |
US6948718B2 (en) * | 2003-02-03 | 2005-09-27 | Advanced Drainage Systems, Inc. | Gasket |
MXPA06013475A (es) * | 2004-05-27 | 2007-04-25 | Nomaco Inc | Sistema de fabricacion de soldadura y perfiles de espuma. |
JP5091399B2 (ja) * | 2005-11-15 | 2012-12-05 | ハスクバーナ・ゼノア株式会社 | チェーンソウ |
JP2007177774A (ja) * | 2005-12-28 | 2007-07-12 | Komatsu Zenoah Co | 2サイクルエンジン |
JP2007176128A (ja) * | 2005-12-28 | 2007-07-12 | Komatsu Zenoah Co | チェーンソー |
US20070245789A1 (en) * | 2006-04-21 | 2007-10-25 | Zepp William L | Method of producing helically corrugated metal pipe and related pipe construction |
US20080128583A1 (en) * | 2006-07-17 | 2008-06-05 | Doug Smoljo | Form and method and apparatus for making a form |
US20080092976A1 (en) * | 2006-10-20 | 2008-04-24 | Komatsu Zenoah Co. | Blower duct |
DE202007007666U1 (de) * | 2007-05-30 | 2007-08-30 | Funke Kunststoffe Gmbh | Schneid- und Anfasvorrichtung für Rohre |
US20090038106A1 (en) * | 2007-08-10 | 2009-02-12 | Zenoah Co., Ltd. | Engine blower |
US9505164B2 (en) | 2009-12-30 | 2016-11-29 | Schauenburg Technology Se | Tapered helically reinforced hose and its manufacture |
CN102189687A (zh) * | 2009-12-08 | 2011-09-21 | 潍坊中云科研有限公司 | 塑料波纹管连接装置的成型装置 |
CN102085581B (zh) * | 2010-12-17 | 2012-05-30 | 华瀚科技有限公司 | 一种塑钢缠绕管的切割方法及其切割装置 |
CN102797917B (zh) * | 2012-09-05 | 2014-04-30 | 吴耕田 | 一种聚乙烯夹心加强筋板带往复缠绕的压力管及加工方法 |
CN103112174B (zh) * | 2013-03-01 | 2016-05-25 | 深圳市沃尔核材股份有限公司 | 一种支撑管的生产方法及包括该方法的生产系统 |
WO2017019005A1 (en) | 2015-07-27 | 2017-02-02 | Halliburton Energy Services, Inc. | Tilted antenna bobbins and methods of manufacture |
CN106738995A (zh) * | 2017-01-19 | 2017-05-31 | 姜维雁 | 一体成型管和其制造方法 |
CN107755810A (zh) * | 2017-09-30 | 2018-03-06 | 深圳市永顺通用机械有限公司 | 一种全自动多刀头切管机 |
EP4127575A4 (en) * | 2020-03-30 | 2024-07-24 | Sumitomo Shi Cryogenics Of America Inc | IMPROVED SPLIT IMPULSE TUBE CONNECTION LINE |
CN112453561B (zh) * | 2020-10-16 | 2022-05-17 | 宁波友谊铜业有限公司 | 一种自移动的圆管分离机 |
CN113024930B (zh) * | 2021-04-08 | 2022-08-12 | 四川潽鑫科技集团有限公司 | 一种mphdpe缠绕结构壁管及其加工工艺 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2288094A (en) * | 1939-01-28 | 1942-06-30 | Gen Motors Corp | Method of making tubing |
US2354485A (en) * | 1942-11-02 | 1944-07-25 | Extruded Plastics Inc | Composite article and element therefor |
US2739089A (en) * | 1952-10-07 | 1956-03-20 | Svenska Aktiebolaget Polva | Plastic strips |
US2737091A (en) * | 1952-11-25 | 1956-03-06 | Robinson Ernest Bradbury | Method of making helically wound containers |
US2812007A (en) * | 1954-07-16 | 1957-11-05 | Painter Corp E Z | Apparatus for and method of continuously producing paint roller cover sections |
BE566751A (es) * | 1957-04-18 | |||
US3199541A (en) * | 1963-04-03 | 1965-08-10 | Flexible Tubing Corp | Interlocking strip flexible hose |
NL150210B (nl) * | 1964-09-14 | 1976-07-15 | Polva Nederland Bv | Buigzame strook voor het schroefvormig wikkelen tot een buis. |
US3532580A (en) * | 1965-11-15 | 1970-10-06 | Shiro Kanao | Method and apparatus for continuously manufacturing synthetic resin pipe |
DK135616B (da) * | 1967-10-02 | 1977-05-31 | Dynamit Nobel Ag | Fremgangsmåde og apparat til fremstilling af viklede rør af termoplastisk formstof. |
IL31940A (en) * | 1968-04-05 | 1971-08-25 | Dynamit Nobel Ag | Sections from thermoplastic resins |
US3501179A (en) * | 1968-08-01 | 1970-03-17 | Armco Steel Corp | Helically corrugated spiral pipe and coupling therefor |
DE1808056B2 (de) * | 1968-11-09 | 1974-02-14 | Dynamit Nobel Ag, 5210 Troisdorf | Steckverbindung für Rohre mit außenseitigen schraubenlinienförmigen Rippen, Wülsten od.dgl |
US3606402A (en) * | 1969-07-02 | 1971-09-20 | Fiberglass Resources Corp | Locking means for adjacent pipe sections |
BE755700R (fr) * | 1969-09-03 | 1971-02-15 | Dynamit Nobel Ag | Procede de fabrication de tubes en matiere synthetique par enroulement en helice d'une bande profilee et dispositif pour la miseen oeuvre de ce |
US3717916A (en) * | 1971-09-08 | 1973-02-27 | Dynamit Nobel Ag | Apparatus for forming spiral wound pipes |
US3794364A (en) * | 1971-12-27 | 1974-02-26 | Johns Manville | Conduit end connection |
DE2221727C3 (de) * | 1972-05-04 | 1978-08-24 | Dynamit Nobel Ag, 5210 Troisdorf | Vorrichtung zum Kalibrieren eines Wickelrohres aus thermoplastischem Kunststoff |
US3815455A (en) * | 1972-10-05 | 1974-06-11 | A Nyssen | Cut-off apparatus for pipe machine |
US4209043A (en) * | 1977-10-18 | 1980-06-24 | Rib Loc (Hong Kong) Ltd. | Plastic tubular objects |
US4176865A (en) * | 1978-03-21 | 1979-12-04 | Armco Steel Corporation | Coupling for pipe |
-
1980
- 1980-08-05 US US06/175,473 patent/US4362187A/en not_active Expired - Lifetime
-
1981
- 1981-07-20 WO PCT/US1981/000977 patent/WO1982000452A1/en not_active Application Discontinuation
- 1981-07-20 EP EP81902158A patent/EP0056811A1/en not_active Withdrawn
- 1981-07-20 JP JP56502711A patent/JPS57501229A/ja active Pending
- 1981-07-20 AU AU74578/81A patent/AU543229B2/en not_active Ceased
- 1981-08-04 BE BE0/205577A patent/BE889852A/fr not_active IP Right Cessation
- 1981-08-04 BR BR8105016A patent/BR8105016A/pt unknown
- 1981-08-04 ES ES1981271621U patent/ES271621Y/es not_active Expired
- 1981-08-04 CA CA000383109A patent/CA1167879A/en not_active Expired
- 1981-08-04 AR AR286340A patent/AR230694A1/es active
-
1982
- 1982-03-31 NO NO821094A patent/NO821094L/no unknown
- 1982-07-01 ES ES513649A patent/ES513649A0/es active Granted
Also Published As
Publication number | Publication date |
---|---|
BR8105016A (pt) | 1982-04-06 |
AR230694A1 (es) | 1984-05-31 |
JPS57501229A (es) | 1982-07-15 |
US4362187A (en) | 1982-12-07 |
ES8307575A1 (es) | 1983-07-01 |
NO821094L (no) | 1982-03-31 |
EP0056811A1 (en) | 1982-08-04 |
AU7457881A (en) | 1982-03-02 |
ES513649A0 (es) | 1983-07-01 |
WO1982000452A1 (en) | 1982-02-18 |
BE889852A (fr) | 1982-02-04 |
AU543229B2 (en) | 1985-04-04 |
CA1167879A (en) | 1984-05-22 |
ES271621U (es) | 1984-01-16 |
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