Method of rolling sheet metal,申请号US19280292057-传众专利搜索

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发明名称	Method of rolling sheet metal
摘要
申请公布号	US1821751(A)	申请公布日期	1931.09.01
申请号	US19280292057	申请日期	1928.07.12
申请人	WHEELING STEEL CORPORATION	发明人	FELTON JOHN M.;VERWOHLT CLARENCE H.
分类号	B21B1/38	主分类号	B21B1/38
代理机构		代理人
主权项
地址

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