Follower for loose-leaf binders,申请号US19440533324-传众专利搜索

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发明名称	Follower for loose-leaf binders
摘要
申请公布号	US2440939(A)	申请公布日期	1948.05.04
申请号	US19440533324	申请日期	1944.04.29
申请人	THE HEINN COMPANY	发明人	JR. CHARLES H. FRANZ,
分类号	B42F13/40	主分类号	B42F13/40
代理机构		代理人
主权项
地址

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