Title:
Well tools
Document Type and Number:
United States Patent 3042065


Inventors:
Graves, Shelby J.
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Publication Date:
07/03/1962
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Assignee:
OTIS ENG CO
Primary Class:
137/155
Other Classes:
251/125, 417/117, 137/517, 137/542
International Classes:
E21B43/12
US Patent References:
2145918Gas lift apparatus
2298567Pump anchor
2348564Well device
2350472Intermitter


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