Ring for a loose leaf book or binder,申请号GB19610036104-传众专利搜索

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发明名称	Ring for a loose leaf book or binder
摘要
申请公布号	GB949872(A)	申请公布日期	1964.02.19
申请号	GB19610036104	申请日期	1961.10.09
申请人	NELSON TEIXEIRA DE ALMEIDA	发明人
分类号	B42F3/04	主分类号	B42F3/04
代理机构		代理人
主权项
地址

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