Patents/Inventors

Robert G. Mcdonald

Argyle, TXUS4 patents

3 Patents

US125957912026
Multi-bolt Clamshell Retainer for Wristpin on Rod Pump Unit
TRC Services, Inc.
0 cites
US124107852025
Equalizer Bearing Assembly Having Wedged Retainers
TRC Services, Inc.
0 cites
US123452502025
Lightweight, Lattice Structure Horsehead for Reciprocating Pump Unit
TRC Services, Inc.
0 cites