Hydraulic pavement breaker
United States Patent 2906244
US Patent References:
/0592115.html
- - 0592115

/1029082.html
- - 1029082


Inventors:
Christensen, Sheldon L.
Publication Date:
09/29/1959
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Assignee:
Christensen, Sheldon L.
Primary Class:
173/133
Other Classes:
173/135, 91/276, 16/436, 16/431, 173/DIG.004, 173/170, 91/317
International Classes:
B25D9/14; E01C23/12; B25D9/00; E01C23/00