发明名称 Drill attachment
摘要 A hammer adapter for a drill including a hammer assembly and a chuck assembly provides a hammering and drilling action for hard substrates by having a rotating spindle operatively connected to a reciprocating spindle to provide a drilling and hammering mechanism.
申请公布号 US4450919(A) 申请公布日期 1984.05.29
申请号 US19830455226 申请日期 1983.01.03
申请人 COUSINEAU, BERNARD L. 发明人 COUSINEAU, BERNARD L.
分类号 B25D11/10;B25D17/00;(IPC1-7):E02D7/02 主分类号 B25D11/10
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