Title:
Means for effecting sequential discharge of a series of material breaking cartridges
United States Patent 2858764


Inventors:
Hesson, James C.
Swanson, James A.
Application Number:
US61663456A
Publication Date:
11/04/1958
Filing Date:
10/18/1956
Assignee:
CARDOX CORP
Primary Class:
Other Classes:
102/330, 137/119.09
International Classes:
E21C37/14
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