Visible-record system,申请号US19250074523-传众专利搜索

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发明名称	Visible-record system
摘要
申请公布号	US1787755(A)	申请公布日期	1931.01.06
申请号	US19250074523	申请日期	1925.12.10
申请人	STATIONERS LOOSE LEAF CO.	发明人	COMPANY FIRST WISCONSIN TRUST
分类号	B42F13/28	主分类号	B42F13/28
代理机构		代理人
主权项
地址

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