Title:
Core catcher
United States Patent 2083062

Inventors:
Hampton, Harry D.
Publication Date:
06/08/1937
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Assignee:
CAMERON IRON WORKS INC
Primary Class:
294/68.220
Other Classes:
175/240, 24/108, 294/86.110
International Classes:
E21B21/10; E21B25/14; E21B21/00; E21B25/00