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发明名称
Television system
摘要
申请公布号
US2152234(A)
申请公布日期
1939.03.28
申请号
US19320623325
申请日期
1932.07.19
申请人
RADIO CORPORATION OF AMERICA
发明人
BALLARD RANDALL C.
分类号
H04N3/34
主分类号
H04N3/34
代理机构
代理人
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