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发明名称
SYSTEM FOR SUBSTITUTING TELEVISION SIGNALS TRANSMITTED VIA¹TELEPHONE LINES
摘要
申请公布号
IE893208(L)
申请公布日期
1990.04.11
申请号
IE19890003208
申请日期
1989.10.05
申请人
A.C. NIELSEN COMPANY
发明人
分类号
H04N7/00;(IPC1-7):H04N7/00
主分类号
H04N7/00
代理机构
代理人
主权项
地址
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