Rotary tool on electric hammer,申请号US19490079216-传众专利搜索

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发明名称	Rotary tool on electric hammer
摘要
申请公布号	US2536971(A)	申请公布日期	1951.01.02
申请号	US19490079216	申请日期	1949.03.02
申请人	SYNTRON COMPANY	发明人	WEYANDT CARL S.;SPURLIN WILLIAM V.
分类号	B25D11/06;B25D13/00;E21B1/22	主分类号	B25D11/06
代理机构		代理人
主权项
地址

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