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发明名称	ABACUS CALCULATION DEVICE
摘要
申请公布号	JPH05142989(A)	申请公布日期	1993.06.11
申请号	JP19910301391	申请日期	1991.11.18
申请人	TOHOKU NIPPON DENKI SOFTWARE KK	发明人	ABE TETSUYA
分类号	G09B19/02	主分类号	G09B19/02
代理机构		代理人
主权项
地址

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