Improvements in Data Retrieval Systems,申请号GB19670057279-传众专利搜索

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发明名称	Improvements in Data Retrieval Systems
摘要
申请公布号	GB1168178(A)	申请公布日期	1969.10.22
申请号	GB19670057279	申请日期	1967.12.18
申请人	SONY CORPORATION	发明人
分类号	G11B27/024;H04N1/21	主分类号	G11B27/024
代理机构		代理人
主权项
地址

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