COPY-PROOF RECORDING MEDIUM AND DEVICE FOR ADDING COPY-PROOF INTERFERENCE SIGNAL,申请号GB19810032052-传众专利搜索

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发明名称	COPY-PROOF RECORDING MEDIUM AND DEVICE FOR ADDING COPY-PROOF INTERFERENCE SIGNAL
摘要
申请公布号	GB2086641(A)	申请公布日期	1982.05.12
申请号	GB19810032052	申请日期	1981.10.23
申请人	NIPPON VICTOR KK	发明人
分类号	G11B20/00;H04N5/913;(IPC1-7):G11B23/28;G11B5/02;G11B5/86	主分类号	G11B20/00
代理机构		代理人
主权项
地址

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