Title:
SWITCHING APPARATUS FOR SELECTIVELY ACTUATING EXPLOSIVE WELL-COMPLETION DEVICES
United States Patent 3517757


Inventors:
Hart, Herbert J.
Application Number:
US3517757DA
Publication Date:
06/30/1970
Filing Date:
09/23/1968
Assignee:
SCHLUMBERGER TECHNOLOGY CORP
Primary Class:
Other Classes:
337/145
International Classes:
E21B43/1185; F42D1/05; (IPC1-7): E21B43/117
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