Loose-leaf binder,申请号US19410411811-传众专利搜索

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发明名称	Loose-leaf binder
摘要
申请公布号	US2347278(A)	申请公布日期	1944.04.25
申请号	US19410411811	申请日期	1941.09.22
申请人	WILSON-JONES COMPANY	发明人	PITT WILLIAM P.
分类号	B42F9/00	主分类号	B42F9/00
代理机构		代理人
主权项
地址

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