Title:
Method and apparatus for coring
United States Patent 2264449
Inventors:
Mounce, Whitman D.
Publication Date:
12/02/1941
Export Citation:
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Assignee:
STANDARD OIL DEV CO
Primary Class:
175/59
Other Classes:
175/70, 175/233, 175/245, 175/254
International Classes:
E21B25/08; E21B25/00
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