Means for securing rolls to shafts,申请号US19500168218-传众专利搜索

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发明名称	Means for securing rolls to shafts
摘要
申请公布号	US2634144(A)	申请公布日期	1953.04.07
申请号	US19500168218	申请日期	1950.06.15
申请人	THE NATIONAL MACHINERY COMPANY	发明人	FRIEDMAN JOHN H.
分类号	B21B27/02;B21H1/22	主分类号	B21B27/02
代理机构		代理人
主权项
地址

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