Electric welding apparatus and method,申请号US19290349372-传众专利搜索

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发明名称	Electric welding apparatus and method
摘要
申请公布号	US1930452(A)	申请公布日期	1933.10.10
申请号	US19290349372	申请日期	1929.03.23
申请人	BROWN JESSE J	发明人	BROWN JESSE J.
分类号	B23K11/10	主分类号	B23K11/10
代理机构		代理人
主权项
地址

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