73332399
Oct 14, 1981
Apr 12, 1983
Apparatus for Controlled Removal of Solids and Gases from Drilling Mud-Namely, Degasser Machines, Mechanical Screen Vibrating Machines and Screens Therefor, Shale Shaking Machines and Screens Therefor, Desander Machines, Centrifugal Pumps and Cyclones, Agitators, Metal Holding Tanks and Parts Therefor Sold in Conjunction with One or More of the Aforementioned Goods
Machinery