Pressure pipe-welding,申请号US19420444459-传众专利搜索

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发明名称	Pressure pipe-welding
摘要
申请公布号	US2376765(A)	申请公布日期	1945.05.22
申请号	US19420444459	申请日期	1942.05.25
申请人	FORBES JR ARTHUR L	发明人	JR. ARTHUR L. FORBES,
分类号	B23K5/00	主分类号	B23K5/00
代理机构		代理人
主权项
地址

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