A COMBINED CALCULATOR AND INSTRUCTIONAL AID,申请号IN3320MA1987-传众专利搜索

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发明名称	A COMBINED CALCULATOR AND INSTRUCTIONAL AID
摘要
申请公布号	IN169411(B)	申请公布日期	1991.10.12
申请号	IN3320MA1987	申请日期	1987.05.08
申请人	EDDIYA GOPALA KRISHNA RAO	发明人	EDDIYA GOPALA KRISHNA RAO
分类号	G06G1/04;(IPC1-7):G06G1/04	主分类号	G06G1/04
代理机构		代理人
主权项
地址

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