E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 10/14 (2006.01) E21B 10/62 (2006.01)
Patent
CA 2746501
A hybrid drill bit having secondary backup cutters positioned with high side rake angles.
Trépan hybride ayant des systèmes secondaires de découpe de secours, positionnés selon des angles d'inclinaison latéraux élevés.
Damschen Michael S.
Pessier Rudolf C.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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