Apparatus for making welded pipes and tubes,申请号US19370121042-传众专利搜索

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发明名称	Apparatus for making welded pipes and tubes
摘要
申请公布号	US2197962(A)	申请公布日期	1940.04.23
申请号	US19370121042	申请日期	1937.01.18
申请人	AIR REDUCTION COMPANY, INCORPORATED	发明人	ANDERSON JAMES L.
分类号	B21C37/08	主分类号	B21C37/08
代理机构		代理人
主权项
地址

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