Composition of matter for welding copper and steel,申请号US19310525034-传众专利搜索

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发明名称	Composition of matter for welding copper and steel
摘要
申请公布号	US1836401(A)	申请公布日期	1931.12.15
申请号	US19310525034	申请日期	1931.03.24
申请人	SCHAFFNER EMANUEL J	发明人	SCHAFFNER EMANUEL J.
分类号	B23K35/30;B23K35/36	主分类号	B23K35/30
代理机构		代理人
主权项
地址

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