Loose leaf notebook kit,申请号US19350023581-传众专利搜索

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发明名称	Loose leaf notebook kit
摘要
申请公布号	US2048980(A)	申请公布日期	1936.07.28
申请号	US19350023581	申请日期	1935.05.27
申请人	VANHOOSER HARRY T	发明人	VANHOOSER HARRY T.
分类号	B42D5/00;B42F13/40	主分类号	B42D5/00
代理机构		代理人
主权项
地址

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