Power drive connection for combined rotatable and oscillatable mining tools,申请号US19510234207-传众专利搜索

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发明名称	Power drive connection for combined rotatable and oscillatable mining tools
摘要
申请公布号	US2659585(A)	申请公布日期	1953.11.17
申请号	US19510234207	申请日期	1951.06.29
申请人	GOODMAN MANUFACTURING COMPANY	发明人	MCCALLUM ROBERT A.
分类号	E21C31/04	主分类号	E21C31/04
代理机构		代理人
主权项
地址

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