Releasable fluid control apparatus for retrieving subsurface well devices
United States Patent 3199906

Inventors:
Chenoweth, David V.
Publication Date:
08/10/1965
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Assignee:
BAKER OIL TOOLS INC
Primary Class:
294/86.150
Other Classes:
294/86.320, 166/125
International Classes:
E21B23/06; E21B23/00
Foreign References:
DE126731C