Holding devices for ribbon-type can-opening keys,申请号US19550479618-传众专利搜索

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发明名称	Holding devices for ribbon-type can-opening keys
摘要
申请公布号	US2730729(A)	申请公布日期	1956.01.17
申请号	US19550479618	申请日期	1955.01.03
申请人	GEORGE COPLEN	发明人	COPLEN GEORGE
分类号	B67B7/40	主分类号	B67B7/40
代理机构		代理人
主权项
地址

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