Title:
FORMING FRACTURES IN THE DESIRED DIRECTION IN EARTH FORMATIONS
United States Patent 3431977


Inventors:
East, Clarence Robert
Mallinger, Morton A.
Application Number:
US3431977DA
Publication Date:
03/11/1969
Filing Date:
07/24/1967
Assignee:
PAN AMERICAN PETROLEUM CORP
Primary Class:
International Classes:
E21B43/26; (IPC1-7): E21B33/13; E21B43/26
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