Title:
Fluid actuated percussive tool
United States Patent 2886004


Inventors:
Morrison, William A.
Application Number:
US66170857A
Publication Date:
05/12/1959
Filing Date:
05/27/1957
Assignee:
INGERSOLL RAND CO
Primary Class:
Other Classes:
91/290, 91/325, 173/78, 173/138
International Classes:
E21B6/00
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