SCALE FINGERING SLIDERULE,申请号USD3733956-传众专利搜索

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发明名称	SCALE FINGERING SLIDERULE
摘要
申请公布号	US3733956(A)	申请公布日期	1973.05.22
申请号	USD3733956	申请日期	1971.08.13
申请人	LEONARD V,US	发明人	LEONARD V,US
分类号	G09B15/00;(IPC1-7):G09B15/02	主分类号	G09B15/00
代理机构		代理人
主权项
地址

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