Method of making razor blades,申请号US19300496933-传众专利搜索

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发明名称	Method of making razor blades
摘要
申请公布号	US1847577(A)	申请公布日期	1932.03.01
申请号	US19300496933	申请日期	1930.11.20
申请人	GILLETTE SAFETY RAZOR COMPANY	发明人	THOMPSON RALPH E.
分类号	B21D53/64	主分类号	B21D53/64
代理机构		代理人
主权项
地址

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