ES2140562T3 - Entubado de tubos de perforacion y protectores de envainado. - Google Patents
Entubado de tubos de perforacion y protectores de envainado.Info
- Publication number
- ES2140562T3 ES2140562T3 ES94928985T ES94928985T ES2140562T3 ES 2140562 T3 ES2140562 T3 ES 2140562T3 ES 94928985 T ES94928985 T ES 94928985T ES 94928985 T ES94928985 T ES 94928985T ES 2140562 T3 ES2140562 T3 ES 2140562T3
- Authority
- ES
- Spain
- Prior art keywords
- tube
- drill
- contact
- drilling tube
- drilling
- 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
Links
- 238000005553 drilling Methods 0.000 title 1
- 241001236644 Lavinia Species 0.000 abstract 2
- 238000005461 lubrication Methods 0.000 abstract 2
- 239000010408 film Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000005457 optimization Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
- E21B17/105—Elastomer protector or centering means split type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
- E21B17/1064—Pipes or rods with a relatively rotating sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Paper (AREA)
Abstract
UN PROTECTOR DE TUBO PERFORADOR QUE CONSTA DE UN CUERPO ANULAR (820) ADAPTADO PARA RODEAR UN TUBO PERFORADOR (824) EN UN TALADRO PARA PROTEGER EL TUBO Y TALADRO (O CARCASA DE ESTE) DEL DAÑO CAUSADO POR EL CONTACTO ENTRE LOS DOS, DE MANERA QUE EL TUBO PERFORADOR PUEDA ROTAR LIBREMENTE DENTRO DE UN CUERPO ANULAR AL CONTACTO ENTRE EL CUERPO Y EL TALADRO (O CARCASA DE ESTE), PARA REDUCIR LA TORSION Y EL ROZAMIENTO PRODUCIDO POR DICHO CONTACTO. EL ENSAMBLAJE PUEDE INCLUIR ADEMAS ENGANCHES ANULARES (822) ASEGURADOS AL TUBO PERFORADOR (824) PARA RESTRINGIR EL MOVIMIENTO LONGITUDINAL DEL CUERPO A LO LARGO DEL TUBO. SE MUESTRAN VARIAS CARACTERISTICAS DE TALES ENSAMBLAJES QUE INCLUYEN CARACTERISTICAS DE FORMA Y CONFIGURACION DEL CUERPO ANULAR Y DE LOS ENGANCHES, EL USO DE ELEMENTOS DE SOPORTE EN LAS SUPERFICIES INTERNA Y EXTERNA DEL CUERPO ANULAR Y ENTRE EL CUERPO Y LOS ENGANCHES O UNIONES DEL TUBO PERFORADOR, Y LOS MATERIALES PARA UTILIZAR EN LA FABRICACION DEL CUERPO Y DE LOS SOPORTES. ESTOS ESTANPARTICULARMENTE RELACIONADOS CON LA OPTIMIZACION DE LOS MONTAJES DE SOPORTE PARA PROMOVER UNA LUBRICACION DE PELICULA FINA Y PARA EMPLEAR UNA AUTOLUBRICACION SACRIFICIAL CUANDO TAL LUBRICACION DE PELICULA FINA SE ROMPE, CONFIGURANDO EL ENSAMBLAJE PARA PROMOVER UN FLUJO DE FLUIDO ALREDEDOR Y A TRAVES DEL MISMO Y PARA EVITAR EL DESREBABADO DEL ENSAMBLAJE EN OBSTRUCCIONES DE ORIFICIO DESCENDENTE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939321257A GB9321257D0 (en) | 1993-10-14 | 1993-10-14 | Drill pipe tubing and casing protectors |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2140562T3 true ES2140562T3 (es) | 2000-03-01 |
Family
ID=10743577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94928985T Expired - Lifetime ES2140562T3 (es) | 1993-10-14 | 1994-10-12 | Entubado de tubos de perforacion y protectores de envainado. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5901798A (es) |
EP (1) | EP0721539B1 (es) |
AU (1) | AU698810B2 (es) |
CA (1) | CA2173864C (es) |
DE (1) | DE69421823T2 (es) |
ES (1) | ES2140562T3 (es) |
GB (1) | GB9321257D0 (es) |
MY (1) | MY118865A (es) |
NO (1) | NO310782B1 (es) |
WO (1) | WO1995010685A2 (es) |
Families Citing this family (65)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6006830A (en) * | 1994-03-12 | 1999-12-28 | Downhole Products (Uk) Limited | Casing centraliser |
GB9404857D0 (en) * | 1994-03-12 | 1994-04-27 | Downhole Products Uk Ltd | Casing centraliser |
GB2299598B (en) * | 1995-04-07 | 1999-03-17 | Weatherford Lamb | Apparatus for use in a wellbore |
DE69635360T2 (de) * | 1995-04-27 | 2006-07-27 | Weatherford/Lamb, Inc., Houston | Nicht-rotierender Zentrierkorb |
EP0843773B1 (en) * | 1995-08-30 | 2000-10-18 | Drilltech Services (Asia) Pte Limited | Friction-reducing drill pipe component |
US5803193A (en) * | 1995-10-12 | 1998-09-08 | Western Well Tool, Inc. | Drill pipe/casing protector assembly |
US5833019A (en) * | 1996-11-27 | 1998-11-10 | Pegasus International Inc. | Pipe protector |
US5833018A (en) * | 1996-12-20 | 1998-11-10 | Pegasus International Inc. | Drill pipe/casing protector |
EP0968352B1 (en) * | 1997-03-11 | 2005-12-28 | Weatherford/Lamb, Inc. | Friction reducing tool |
GB9800885D0 (en) * | 1998-01-16 | 1998-03-11 | Ray Oil Tool Co Ltd | Casing centralisers |
GB2331534B (en) | 1998-02-23 | 2000-01-19 | Weatherford Lamb | Centralizer |
AU754031B2 (en) | 1998-03-05 | 2002-10-31 | Weatherford/Lamb Inc. | An axle, a friction reducing fitting and an axle installation method |
US6250405B1 (en) * | 1999-01-06 | 2001-06-26 | Western Well Tool, Inc. | Drill pipe protector assembly |
US6739415B2 (en) | 1999-01-06 | 2004-05-25 | Western Well Tool, Inc. | Drill pipe protector |
AU760978B2 (en) | 1999-01-22 | 2003-05-29 | Weatherford Technology Holdings, Llc | Friction reducing tool and method for its use in a wellbore |
US6250406B1 (en) | 2000-01-14 | 2001-06-26 | Weatherford/Lamb, Inc. | Connection arrangement for a two-piece annular body |
GB0000817D0 (en) * | 2000-01-15 | 2000-03-08 | Bbl Downhole Tools Ltd | Torque reduction tool |
GB0001435D0 (en) * | 2000-01-22 | 2000-03-08 | Downhole Products Plc | Centraliser |
GB0006218D0 (en) * | 2000-03-16 | 2000-05-03 | Rastegar Gholam H | Torque reducing drillstring component |
AU2001274288A1 (en) * | 2000-06-21 | 2002-01-02 | Derek Frederick Herrera | Centraliser |
US7096940B2 (en) * | 2003-10-20 | 2006-08-29 | Rti Energy Systems, Inc. | Centralizer system for insulated pipe |
CA2486279C (en) * | 2003-10-29 | 2010-10-05 | Weatherford/Lamb, Inc. | Vibration damper systems for drilling with casing |
GB2417539B (en) | 2004-08-24 | 2006-11-08 | Specialised Petroleum Serv Ltd | Clamp |
GB0501056D0 (en) * | 2005-01-18 | 2005-02-23 | Downhole Products Plc | Centraliser |
ITPC20070010A1 (it) * | 2007-02-14 | 2008-08-15 | Cesare Melegari | Attrezzatura e metodo per la realizzazione di micropali nel terreno, in particolare per l'ancoraggio di tiranti attivi |
US8119047B2 (en) * | 2007-03-06 | 2012-02-21 | Wwt International, Inc. | In-situ method of forming a non-rotating drill pipe protector assembly |
US20100181064A1 (en) * | 2007-07-06 | 2010-07-22 | Wellbore Energy Solutions, Llc | Multi-Purpose Well Servicing Apparatus |
CA2609018A1 (en) * | 2007-09-28 | 2009-03-28 | Stephane Labelle | Systeme permettant de mieux exploiter la geothermie haute temperature |
EP2087857A1 (en) | 2008-02-07 | 2009-08-12 | K2M, Inc. | Expandable vertebral device with cam lock |
WO2009132301A1 (en) * | 2008-04-24 | 2009-10-29 | Western Well Tool, Inc. | Rotating drill pipe protector attachment and fastener assembly |
GB2474819B (en) | 2008-08-29 | 2012-08-15 | Statoil Petroleum As | Drill pipe protector assembly |
US7984762B2 (en) | 2008-09-25 | 2011-07-26 | Halliburton Energy Services, Inc. | Pressure relieving transition joint |
EP2417324B1 (en) | 2009-04-07 | 2017-05-17 | Frank's International, Inc. | Friction reducing wear band and method of coupling a wear band to a tubular |
US8800664B2 (en) * | 2009-07-27 | 2014-08-12 | Wwt North America Holdings, Inc. | Non-rotating buoyancy modules for sub-sea conduits |
GB201019912D0 (en) | 2010-11-24 | 2011-01-05 | Caledus Ltd | Drill pipe tubing and casing protector |
BR112013016844B1 (pt) | 2011-01-07 | 2021-01-05 | Statoil Petroleum As | centralizador |
CA3030731C (en) | 2011-03-14 | 2021-04-20 | Rdt, Inc. | Wear resistant drill pipe for use in the downhole environment |
US20140041946A1 (en) * | 2011-07-26 | 2014-02-13 | Keith E. Holtzman | Friction reduction device for drill pipe |
WO2013089810A1 (en) * | 2011-12-16 | 2013-06-20 | Tunget Bruce A | Rotary stick, slip and vibration reduction drilling stabilizers with hydrodynamic fluid bearings and homogenizers |
US20130161021A1 (en) * | 2011-12-23 | 2013-06-27 | Stephen J. Makosey | Compression coupling for pipes subjected to tension loads and associated methods |
US9103189B2 (en) | 2012-03-08 | 2015-08-11 | Halliburton Energy Services, Inc. | Segmented seat for wellbore servicing system |
USD849800S1 (en) | 2012-04-04 | 2019-05-28 | Summit Energy Services, Inc. | Casing centralizer having spiral blades |
AU2013327643B2 (en) * | 2012-10-01 | 2016-09-22 | Halliburton Energy Services, Inc. | Interlocking segmented seat for downhole wellbore tools |
US9707096B2 (en) | 2013-03-14 | 2017-07-18 | K2M, Inc. | Spinal fixation device |
US10292832B2 (en) | 2013-03-14 | 2019-05-21 | Ohio State Innovation Foundation | Spinal fixation device |
US9057229B2 (en) | 2013-03-14 | 2015-06-16 | Summit Energy Services, Inc. | Casing centralizer |
US9869146B2 (en) * | 2013-04-17 | 2018-01-16 | Halliburton Energy Services, Inc. | Methods and apparatus for coring |
GB2525250A (en) * | 2014-04-17 | 2015-10-21 | Reece Innovation Ct Ltd | Improvments in or relating to live well injection |
US9702197B2 (en) | 2014-04-29 | 2017-07-11 | Wwt North America Holdings, Inc. | Reamer shoe attachment for flexible casing shoe |
US9427855B2 (en) * | 2014-05-01 | 2016-08-30 | Gkn Driveline North America, Inc. | Crimping tool for a boot clamp |
JP6569355B2 (ja) * | 2015-07-27 | 2019-09-04 | 日本製鉄株式会社 | 坑井の掘削方法、その掘削方法に用いられるドリルパイプ及びツールジョイント |
AU2016324333B2 (en) | 2015-09-18 | 2021-03-18 | K2M, Inc. | Corpectomy device and method of use thereof |
WO2019028024A1 (en) * | 2017-08-01 | 2019-02-07 | Frank's International, Llc | APPARATUS AND METHOD FOR REDUCING THE TORQUE OF DRILL ROD TRAIN |
US11352840B2 (en) | 2017-08-01 | 2022-06-07 | Frank's International, Llc | Drill pipe torque reducer and method |
US10989042B2 (en) | 2017-11-22 | 2021-04-27 | Baker Hughes, A Ge Company, Llc | Downhole tool protection cover |
US10920502B2 (en) | 2018-02-05 | 2021-02-16 | Saudi Arabian Oil Company | Casing friction reduction methods and tool |
US11448016B2 (en) | 2018-02-05 | 2022-09-20 | Saudi Arabian Oil Company | Casing friction reduction methods and tool |
US11473376B2 (en) | 2018-03-16 | 2022-10-18 | Wwt North America Holdings, Inc | Non-rotating vibration reduction sub |
GB201806175D0 (en) * | 2018-04-16 | 2018-05-30 | Maxwell Oil Tools Ltd | Modified tubular |
RU182805U1 (ru) * | 2018-07-17 | 2018-09-04 | Общество с ограниченной ответственностью "АГД" | Невращающийся протектор для бурильных колонн |
US20220186569A1 (en) * | 2019-02-22 | 2022-06-16 | National Oilwell Varco, L.P. | Wear resistant drill pipe |
CN110821408A (zh) * | 2019-11-28 | 2020-02-21 | 深圳大学 | 钻孔护壁组件、钻孔护壁装置及钻孔护壁方法 |
CN112780193A (zh) * | 2020-12-30 | 2021-05-11 | 大庆石油管理局有限公司 | 一种防套损的复合双层套管 |
US12024981B1 (en) * | 2021-03-12 | 2024-07-02 | Osman Yusuf | Direct drive connector sleeve |
AU2022349606A1 (en) | 2021-09-23 | 2024-04-18 | Wwt North America Holdings, Inc. | Non-rotating drill pipe protector tool having multiple types of hydraulic bearings |
Family Cites Families (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB271839A (en) * | 1926-05-25 | 1928-03-29 | U S Tool Company | Improvements relating to the hydraulic rotary system of well drilling |
US1756195A (en) * | 1926-12-27 | 1930-04-29 | Byron Jackson Co | Antifriction bearing for drill pipes |
US1737578A (en) * | 1927-07-06 | 1929-12-03 | Harry H Isaacs | Antifriction pipe protector |
US1699087A (en) * | 1927-08-17 | 1929-01-15 | John L Woodmansee | Rotating collar |
US1824257A (en) * | 1928-01-30 | 1931-09-22 | Reed Roller Bit Co | Tool joint |
US1801294A (en) * | 1928-02-23 | 1931-04-21 | Frank W Sutton | Sucker-rod guide |
GB307212A (en) * | 1928-03-06 | 1929-03-07 | James Cuthill | Improvements relating to drill-pipes for well boring |
US1877395A (en) * | 1928-05-14 | 1932-09-13 | Emsco Derrick & Equip Co | Antifriction device for drill pipe |
US1764488A (en) * | 1929-04-22 | 1930-06-17 | John A Zublin | Floating supporter for drill pipe |
US2127796A (en) * | 1937-11-17 | 1938-08-23 | Orvis C Willis | Bearing structure |
US2248160A (en) * | 1938-08-12 | 1941-07-08 | Earl L Crawford | Well apparatus |
US2318878A (en) * | 1941-02-03 | 1943-05-11 | Patterson Ballagh Corp | Open hole tool joint protector |
US2368415A (en) * | 1941-05-14 | 1945-01-30 | John M Grant | Drill pipe protector |
US2308316A (en) * | 1941-07-19 | 1943-01-12 | Smith | Drill pipe protector assembly |
US2793917A (en) * | 1953-12-14 | 1957-05-28 | Warren F Ward | Sucker rod protectors |
US2715552A (en) * | 1954-03-01 | 1955-08-16 | Guiberson Corp | Drill string bushing tool |
US2860013A (en) * | 1956-02-29 | 1958-11-11 | James F Medearis | Tool joint protector |
US2943009A (en) * | 1956-06-01 | 1960-06-28 | Guiberson Corp | Process for making reinforced rubber articles |
US3063759A (en) * | 1958-07-11 | 1962-11-13 | Drilco Oil Tools Inc | Drill collar stabilizer |
US3088532A (en) * | 1960-12-27 | 1963-05-07 | Jersey Prod Res Co | Bit loading device |
US3282345A (en) * | 1964-03-09 | 1966-11-01 | James C Tripplehorn | Guide and scraper |
US3320004A (en) * | 1964-06-19 | 1967-05-16 | Drilco Oil Tool Inc | Earth boring apparatus |
US3343890A (en) * | 1965-01-18 | 1967-09-26 | Exxon Production Research Co | Apparatus for reducing casing wear during drilling operations |
US3370894A (en) * | 1965-07-06 | 1968-02-27 | Central Res Inc | Rod guide |
US3397017A (en) * | 1966-02-21 | 1968-08-13 | Byron Jackson Inc | Non-rotating drill pipe protector |
US3410613A (en) * | 1966-05-25 | 1968-11-12 | Byron Jackson Inc | Non-rotating single-collar drill pipe protector |
US3528499A (en) * | 1969-03-25 | 1970-09-15 | Charles H Collett | Plastic floating drill pipe and sucker rod protector |
US3948575A (en) * | 1974-10-24 | 1976-04-06 | Rosser Eugene P | Drill pipe and drill collar containing molded casing protector and method of protecting casing therewith |
US3999811A (en) * | 1975-08-25 | 1976-12-28 | Bryon Jackson, Inc. | Drill pipe protector |
US4071101A (en) * | 1976-03-08 | 1978-01-31 | Walker-Neer Mfg. Co., Inc. | Stabilizer for single or dual tube drilling |
US4102552A (en) * | 1976-09-07 | 1978-07-25 | Smith International, Inc. | Tandem eccentric roller stabilizer for earth boring apparatus |
US4083612A (en) * | 1976-10-15 | 1978-04-11 | Smith International, Inc. | Non-rotating stabilizer for earth boring and bearing therefor |
DE2920126A1 (de) * | 1979-05-18 | 1980-11-27 | Salzgitter Maschinen Ag | Zentrier- und fuehrungsvorrichtung fuer bohrgestaenge zum erdbohren |
US4372622A (en) * | 1980-11-17 | 1983-02-08 | Cheek Alton E | Recirculating bearing antifriction system for well strings |
AU3409784A (en) * | 1983-10-24 | 1985-05-02 | Dailey Petroleum Services Corp. | Wear protector |
US4606417A (en) * | 1985-04-08 | 1986-08-19 | Webb Derrel D | Pressure equalized stabilizer apparatus for drill string |
GB2204895B (en) * | 1987-05-21 | 1991-11-27 | Stephen Francis Lloyd | Drill pipe tubing and casing protectors |
US4757861A (en) * | 1987-08-06 | 1988-07-19 | Klyne Albert A | Oil well sucker rod coupling assembly |
US4796670A (en) * | 1987-10-15 | 1989-01-10 | Exxon Production Research Company | Drill pipe protector |
US4820140A (en) * | 1987-10-26 | 1989-04-11 | Sigma-Tek, Inc. | Self-lubricating rotary vane pump |
US4858688A (en) * | 1988-06-27 | 1989-08-22 | Edwards Billy J | Sucker rod guide |
GB8817261D0 (en) * | 1988-07-20 | 1988-08-24 | Sperry Sun Inc | Down-hole bearing assemblies for maintaining survey instrument assembly & core barrel orientation |
GB8914882D0 (en) * | 1989-06-29 | 1989-08-23 | Red Baron Oil Tools Rental | Drill string component |
US5069297A (en) * | 1990-01-24 | 1991-12-03 | Rudolph E. Krueger, Inc. | Drill pipe/casing protector and method |
GB9303325D0 (en) * | 1993-02-19 | 1993-04-07 | Speirs Graeme K | A protector |
-
1993
- 1993-10-14 GB GB939321257A patent/GB9321257D0/en active Pending
-
1994
- 1994-10-12 US US08/628,719 patent/US5901798A/en not_active Expired - Lifetime
- 1994-10-12 AU AU78206/94A patent/AU698810B2/en not_active Withdrawn - After Issue
- 1994-10-12 CA CA002173864A patent/CA2173864C/en not_active Expired - Lifetime
- 1994-10-12 ES ES94928985T patent/ES2140562T3/es not_active Expired - Lifetime
- 1994-10-12 DE DE69421823T patent/DE69421823T2/de not_active Expired - Fee Related
- 1994-10-12 WO PCT/GB1994/002236 patent/WO1995010685A2/en active IP Right Grant
- 1994-10-12 EP EP94928985A patent/EP0721539B1/en not_active Expired - Lifetime
- 1994-10-13 MY MYPI94002736A patent/MY118865A/en unknown
-
1996
- 1996-04-12 NO NO19961472A patent/NO310782B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO961472D0 (no) | 1996-04-12 |
US5901798A (en) | 1999-05-11 |
NO961472L (no) | 1996-06-13 |
MY118865A (en) | 2005-02-28 |
DE69421823D1 (de) | 1999-12-30 |
DE69421823T2 (de) | 2000-06-15 |
CA2173864C (en) | 2004-09-14 |
EP0721539B1 (en) | 1999-11-24 |
AU698810B2 (en) | 1998-11-05 |
WO1995010685A3 (en) | 1995-06-08 |
CA2173864A1 (en) | 1995-04-20 |
WO1995010685A2 (en) | 1995-04-20 |
GB9321257D0 (en) | 1993-12-01 |
AU7820694A (en) | 1995-05-04 |
EP0721539A1 (en) | 1996-07-17 |
NO310782B1 (no) | 2001-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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