Release coupling for well casings
United States Patent 2465027
US Patent References:
/0047613.html
- - 0047613

Coupling
- - 2070077

Take-off tool for wells
- - 2218496


Inventors:
Mcmanaway, Edward C.
Publication Date:
03/22/1949
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Assignee:
Glenn, Harmon B.
Primary Class:
285/36
Other Classes:
285/148.190
International Classes:
E21B17/06; F16L15/08; E21B17/02; F16L15/00