Firing apparatus for gun perforators
United States Patent 2331058

Inventors:
Stick Jr., John C.
Publication Date:
10/05/1943
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Assignee:
LANE WELLS CO
Primary Class:
175/4.550
Other Classes:
89/1.140, 102/322, 307/140, 318/134, 102/430
International Classes:
E21B43/1185; F42D1/05; E21B43/11; F42D1/00