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3774502
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Information
Patent Grant
3774502
References
Source
Patent Number
3,774,502
Date Filed
Not available
Date Issued
Tuesday, November 27, 1973
50 years ago
CPC
E21C37/22 - Hand tools or hand-held power-operated tools specially adapted for dislodging minerals
B25D9/145 - for hydraulically actuated hammers having an accumulator
F03C1/00 - Reciprocating-piston liquid engines
F03C1/14 - by driving liquid of engine
Y10S173/04 - Liquid operated
US Classifications
091 - Motors: expansible chamber type
173 - Tool driving or impacting
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