Binder for books,申请号US19390279017-传众专利搜索

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发明名称	Binder for books
摘要
申请公布号	US2233560(A)	申请公布日期	1941.03.04
申请号	US19390279017	申请日期	1939.06.14
申请人	J. C. HALL COMPANY	发明人	SKOOG CARL E.
分类号	B42B5/12	主分类号	B42B5/12
代理机构		代理人
主权项
地址

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