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发明名称
Subscriber television system
摘要
申请公布号
US2567539(A)
申请公布日期
1951.09.11
申请号
US19480035206
申请日期
1948.06.25
申请人
ZENITH RADIO CORPORATION
发明人
ARAM NATHAN W.
分类号
H04N7/171
主分类号
H04N7/171
代理机构
代理人
主权项
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