Tube reducing mill,申请号US19440541491-传众专利搜索

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发明名称	Tube reducing mill
摘要
申请公布号	US2388251(A)	申请公布日期	1945.11.06
申请号	US19440541491	申请日期	1944.06.22
申请人	ROCKRITE PROCESSES, INC.	发明人	COE GEORGE B.
分类号	B21B21/00	主分类号	B21B21/00
代理机构		代理人
主权项
地址

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