Manufacture of fusion-welded pipe,申请号US19290413977-传众专利搜索

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发明名称	Manufacture of fusion-welded pipe
摘要
申请公布号	US1960523(A)	申请公布日期	1934.05.29
申请号	US19290413977	申请日期	1929.12.14
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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