Automatic welding head,申请号US19390309075-传众专利搜索

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发明名称	Automatic welding head
摘要
申请公布号	US2253366(A)	申请公布日期	1941.08.19
申请号	US19390309075	申请日期	1939.12.13
申请人	METAL & THERMIT CORPORATION	发明人	DEPPELER JOHN HOWARD
分类号	B23K9/133;B65H51/14	主分类号	B23K9/133
代理机构		代理人
主权项
地址

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