Movable ground or current return connections for use in the progressive arc welding process,申请号US19290383434-传众专利搜索

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发明名称	Movable ground or current return connections for use in the progressive arc welding process
摘要
申请公布号	US1840251(A)	申请公布日期	1932.01.05
申请号	US19290383434	申请日期	1929.08.05
申请人	A. O. SMITH CORPORATION	发明人	PRIEBE ARTHUR W.;TIEDEMANN JULIUS B.
分类号	B23K9/32	主分类号	B23K9/32
代理机构		代理人
主权项
地址

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