Method for butt-welding pipes and tubing,申请号US19400315931-传众专利搜索

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发明名称	Method for butt-welding pipes and tubing
摘要
申请公布号	US2282508(A)	申请公布日期	1942.05.12
申请号	US19400315931	申请日期	1940.01.27
申请人	AIR REDUCTION COMPANY, INCORPORATED	发明人	ANDERSON JAMES L.
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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