Universal desk calendar,申请号US19300492939-传众专利搜索

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发明名称	Universal desk calendar
摘要
申请公布号	US1895322(A)	申请公布日期	1933.01.24
申请号	US19300492939	申请日期	1930.11.03
申请人	HALL ROY M	发明人	HALL ROY M.
分类号	B42D5/04	主分类号	B42D5/04
代理机构		代理人
主权项
地址

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