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发明名称
Registration system
摘要
申请公布号
US2894058(A)
申请公布日期
1959.07.07
申请号
US19550485426
申请日期
1955.02.01
申请人
RADIO CORPORATION OF AMERICA
发明人
SHAPIRO LOUIS
分类号
H04N1/48;H04N1/50
主分类号
H04N1/48
代理机构
代理人
主权项
地址
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