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发明名称
Picture recording
摘要
申请公布号
US1819264(A)
申请公布日期
1931.08.18
申请号
US19280324421
申请日期
1928.12.07
申请人
RADIO CORPORATION OF AMERICA
发明人
RANGER RICHARD HOWLAND;MOREHOUSE FRANCIS G.
分类号
H04N1/23
主分类号
H04N1/23
代理机构
代理人
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地址
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