Filler material for welding,申请号US19380205979-传众专利搜索

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发明名称	Filler material for welding
摘要
申请公布号	US2139730(A)	申请公布日期	1938.12.13
申请号	US19380205979	申请日期	1938.05.04
申请人	OXWELD ACETYLENE COMPANY	发明人	DAWSON JOSEPH RALPH
分类号	B23K35/30	主分类号	B23K35/30
代理机构		代理人
主权项
地址

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