Method and apparatus for welding metal elements,申请号US19520300018-传众专利搜索

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发明名称	Method and apparatus for welding metal elements
摘要
申请公布号	US2777929(A)	申请公布日期	1957.01.15
申请号	US19520300018	申请日期	1952.07.21
申请人	BRENNAN JOSEPH B	发明人	BRENNAN JOSEPH B.
分类号	B23K13/00	主分类号	B23K13/00
代理机构		代理人
主权项
地址

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