INFORMATION RETRIEVAL SYSTEM HAVING RAMP MOTOR CONTROL,申请号GB19770040695-传众专利搜索

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发明名称	INFORMATION RETRIEVAL SYSTEM HAVING RAMP MOTOR CONTROL
摘要
申请公布号	GB1534481(A)	申请公布日期	1978.12.06
申请号	GB19770040695	申请日期	1977.09.30
申请人	BELL & HOWELL CO	发明人
分类号	G03B21/11;G06F17/30;G06K17/00;(IPC1-7):G05D3/06	主分类号	G03B21/11
代理机构		代理人
主权项
地址

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