Loose leaf binder,申请号US19380244778-传众专利搜索

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发明名称	Loose leaf binder
摘要
申请公布号	US2206317(A)	申请公布日期	1940.07.02
申请号	US19380244778	申请日期	1938.12.09
申请人	BEHN HERBERT H	发明人	BEHN HERBERT H.
分类号	B42F13/16;B42F13/26	主分类号	B42F13/16
代理机构		代理人
主权项
地址

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