PAY-TV SYSTEM,申请号GB19770048079-传众专利搜索

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发明名称	PAY-TV SYSTEM
摘要
申请公布号	GB1602119(A)	申请公布日期	1981.11.04
申请号	GB19770048079	申请日期	1977.11.18
申请人	SHIU HUNG CHEUNG	发明人
分类号	H04N7/171;(IPC1-7):H04N7/16	主分类号	H04N7/171
代理机构		代理人
主权项
地址

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