Motor operated, rotary impact tool,申请号US19560602099-传众专利搜索

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发明名称	Motor operated, rotary impact tool
摘要
申请公布号	US2961903(A)	申请公布日期	1960.11.29
申请号	US19560602099	申请日期	1956.08.06
申请人	ROGGENBURK EARL G	发明人	ROGGENBURK EARL G.
分类号	B25B21/02	主分类号	B25B21/02
代理机构		代理人
主权项
地址

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正负刚度弹性元件并联的减振装置