Title:
Gun perforators
United States Patent 2742857


Inventors:
Turechek, George F.
Application Number:
US13821550A
Publication Date:
04/24/1956
Filing Date:
01/12/1950
Assignee:
LANE WELLS CO
Primary Class:
Other Classes:
89/1.15
International Classes:
E21B43/117; F42B3/08
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