Wells – Grapple and well anchored lifting means
Patent
1986-02-24
1987-10-20
Novosad, Stephen J.
Wells
Grapple and well anchored lifting means
294 8624, 294 8629, 294 8633, E21B 3118, E21B 3120
Patent
active
047007753
ABSTRACT:
Apparatus and method for a tool that will retrieve either an oil well swab or the down-hole stand which limits the working depth of the swab.
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