Method and apparatus for flowing wells
United States Patent 2193309

Inventors:
Wheless, Eakin L.
Publication Date:
03/12/1940
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Assignee:
Wheless, Eakin L.
Primary Class:
62/67
Other Classes:
165/76, 585/812, 585/800, 166/302, 62/86, 116/277, 166/267, 585/950, 585/921, 166/57, 95/291, 165/185
International Classes:
E21B43/12