-
Angled degradation pick
-
Patent number 9,909,417
-
Issue date Mar 6, 2018
-
NOVATEK IP, LLC
-
David R. Hall
-
E21 - EARTH DRILLING MINING
-
-
Manually rotatable tool
-
Patent number 8,534,767
-
Issue date Sep 17, 2013
-
David R. Hall
-
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
-
Resilient pick shank
-
Patent number 8,500,210
-
Issue date Aug 6, 2013
-
Schlumberger Technology Corporation
-
David R. Hall
-
E21 - EARTH DRILLING MINING
-
Manually rotatable tool
-
Patent number 8,500,209
-
Issue date Aug 6, 2013
-
Schlumberger Technology Corporation
-
David R. Hall
-
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
-
-
Resilient pick shank
-
Patent number 8,118,371
-
Issue date Feb 21, 2012
-
Schlumberger Technology Corporation
-
David R. Hall
-
E21 - EARTH DRILLING MINING
-
Manually rotatable tool
-
Patent number 7,992,944
-
Issue date Aug 9, 2011
-
Schlumberger Technology Corporation
-
David R. Hall
-
E21 - EARTH DRILLING MINING
-
-