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经营范围
发明名称
Television scanning apparatus
摘要
申请公布号
US2281893(A)
申请公布日期
1942.05.05
申请号
US19390280283
申请日期
1939.06.21
申请人
RADIO CORPORATION OF AMERICA
发明人
MARK JAN VAN DER
分类号
H04N5/228
主分类号
H04N5/228
代理机构
代理人
主权项
地址
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