T
Filed: October 23, 1981
Rotary Drill Pipe and Couplings Therefor for Industrial Drilling Operations
Owned by: Tooltech, Inc.
Serial Number: 73333925
TOOLTECH
Filed: October 26, 1981
Rotary Drill Pipe and Couplings Therefore for Industrial Operations
Owned by: Tooltech, Inc.
Serial Number: 73334252
ARMOR PLUS
Filed: January 3, 1983
Overlay of Non-Abrasive Metallic Material Sold Applied to the Joints of Industrial Well Drilling Tools
Owned by: Tooltech, Inc.
Serial Number: 73407873
ARMOR BANDING
Filed: January 3, 1983
Layer of Wear Resistant Metallic Material Sold Applied to Industrial Well Drilling Tool Joints
Owned by: Tooltech, Inc.
Serial Number: 73407874
TECHNOLOG V
Filed: February 16, 1983
A NON-DESTRUCTIVE INSPECTION SERVICE FOR DETERMINING DEFECTS IN WELL PIPE AND TUBING
Owned by: Tooltech, Inc.
Serial Number: 73413696
T2X
Filed: April 14, 1983
Work String Threaded Well Drilling Tool Joints
Owned by: Tooltech, Inc.
Serial Number: 73421598
