-
Active rigging device
-
Patent number 7,677,623
-
Issue date Mar 16, 2010
-
Sonsub Inc.
-
William R. Bath
-
B66 - HOISTING LIFTING HAULING
-
-
-
-
-
-
-
-
-
Hydraulic connector
-
Patent number 5,535,827
-
Issue date Jul 16, 1996
-
Sonsub, Inc.
-
Jerry C. Graff
-
E21 - EARTH DRILLING MINING
-
-
-
Hydraulic connector
-
Patent number 5,433,274
-
Issue date Jul 18, 1995
-
Sonsub, Inc.
-
Jerry C. Graff
-
E21 - EARTH DRILLING MINING
-
-