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发明名称
Transmission of DATV through letterbox PAL channel
摘要
申请公布号
GB2240002(A)
申请公布日期
1991.07.17
申请号
GB19900005541
申请日期
1990.03.12
申请人
* BRITISH BROADCASTING CORPORATION
发明人
JOHN OLIVER * DREWERY
分类号
H04N7/00;H04N11/16
主分类号
H04N7/00
代理机构
代理人
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