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2000-03-31 |
2002-05-17 |
Vallourec Mannesmann Oil & Gas |
Element filete tubulaire pour joint filete tubulaire resistant a la fatigue et joint filete tubulaire resultant
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2000-03-31 |
2002-08-30 |
Vallourec Mannesmann Oil & Gas |
Element filete tubulaire delarde pour joint filete tubulaire resistant a la fatigue et joint filete tubulaire resultant
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2001-11-15 |
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Verbindung für medienführende Teile
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Sumitomo Metal Ind |
Junta com roscas de perfil cÈnico
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2000-06-09 |
2001-12-17 |
Sumitomo Metal Industries Ltd. |
Pipe joint
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Трубное резьбовое соединение с усиленным упором
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2000-12-22 |
2006-01-13 |
Vallourec Mannesmann Oil & Gas |
Joint filete tubulaire avec butee renforcee
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2004-11-10 |
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Jackson Roger P |
Polyaxial bone screw with helically wound capture connection
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2013-02-19 |
Roger P. Jackson |
Closure for open-headed medical implant
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Schraube zum Verbinden mit einem Stab
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2001-02-09 |
2004-02-20 |
Vallourec Mannesmann Oil & Gas |
Joint filete tubulaire avec face de filet bombee convexe
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2001-03-09 |
2003-05-16 |
Vallourec Mannesmann Oil & Gas |
Element filete pour joint filete tubulaire resistant a la fatigue
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Tenaris Connections Bv |
Giunzione filettata per tubi.
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Threaded closure with inwardly-facing tool engaging concave radiused structures and axial through-aperture
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Grant Prideco, L.P. |
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Threaded connection for drill pipes
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2008-06-03 |
Hydril Company |
Expandable threaded connection
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2015-01-06 |
Roger P. Jackson |
Splay control closure for open bone anchor
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2014-03-11 |
Hydril Company |
Threaded connection with perturbed flanks
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Hydril Company |
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Conexion para varilla de bombeo con mayor resistencia a l afatiga obtenida aplicando interferencia diametral para reducir la interferencia axial
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2011-08-31 |
Tenaris Connections Aktiengesellschaft |
Threaded joint with energizable seal
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Tenaris Connections Aktiengesellschaft |
Threaded joint with pressurizable seal
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2016-06-01 |
Tenaris Connections Limited |
Threaded joint with resilient seal ring
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2007-08-24 |
2011-05-26 |
Tenaris Connections Ag |
Gewindeverbindungsstück mit hoher Radiallast und unterschiedlich behandelten Oberflächen
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2007-08-24 |
2010-10-14 |
Tenaris Connections Ag |
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2007-10-03 |
2013-07-16 |
Sumitomo Metal Industries, Ltd. |
Threaded joint having a contactless region with a tapered surface portion
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2008-02-29 |
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Tenaris Connections Ag |
Gewindeverbindungsstück mit verbesserten elastischen Dichtungsringen
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2008-09-10 |
2012-08-21 |
Beverly Watts Ramos |
Low cost, high performance pipe connection
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2009-03-26 |
2012-01-31 |
Sandvik Intellectual Property |
Del hos ett förband i ett tunnväggigt borrör, förbandssystem och tunnväggigt borrörssystem.
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2009-04-22 |
2010-10-27 |
Tenaris Connections Aktiengesellschaft |
Threaded joint for tubes, pipes and the like
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Tenaris Connections B.V. |
Threaded joint sealed to [ultra high] internal and external pressures
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2010-03-26 |
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Tenaris Connections Ltd. |
Thin-walled pipe joint and method to couple a first pipe to a second pipe
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鋼管用ねじ継手
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鋼管用ねじ継手
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2011-01-25 |
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Tenaris Coiled Tubes, Llc |
Coiled tube with varying mechanical properties for superior performance and methods to produce the same by a continuous heat treatment
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Tubular connection and associated threadform
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2012-01-10 |
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Splay control closure for open bone anchor
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2012-11-28 |
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Ultra Premium Oilfield Services, Ltd. |
Tubular connection with helically extending torque shoulder
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Tubular connection with helically extending torque shoulder
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2013-01-11 |
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Tenaris Connections Ltd |
Galling resistant drill pipe tool joint and corresponding drill pipe
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2013-01-28 |
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Pivotal bone anchor assembly with frictional shank head seating surfaces
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High-chromium heat-resistant steel
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Vallourec Oil And Gas France |
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一种抗粘扣的快速上扣螺纹接头
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Vallourec Oil And Gas France |
Self-locking threaded connection partially in non-locking engagement
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