E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/04 (2006.01) E21B 43/12 (2006.01)
Patent
CA 2520758
A well pump drive polished rod guide assembly comprising a rotating polished rod guide shaft adapted to position and maintain the polished rod in line with the drive assembly and the pump driven member facilitating the ability to provide for effective polished rod alignment and sealing.
Na
Swist Jason
LandOfFree
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