-
-
Flow operated orienter
-
Patent number 7,481,282
-
Issue date Jan 27, 2009
-
Weatherford/Lamb, Inc.
-
Clemens L. Horst
-
E21 - EARTH DRILLING MINING
-
Electromagnetic gap sub assembly
-
Patent number 7,252,160
-
Issue date Aug 7, 2007
-
Weatherford/Lamb, Inc.
-
Tony Dopf
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
Non-locking tapered plug valve
-
Patent number 4,614,330
-
Issue date Sep 30, 1986
-
Empresas Lanzagorta, S.A. de C.V.
-
Manmohan S. Kalsi
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...