Title:
Shaped-charge well perforator
United States Patent 2947251


Inventors:
Frank, Jilly Louis
Application Number:
US31389552A
Publication Date:
08/02/1960
Filing Date:
10/09/1952
Assignee:
Borg, Warner
Primary Class:
Other Classes:
89/1.15, 166/55
International Classes:
E21B43/117
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