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发明名称
Frequency shift keying
摘要
申请公布号
US2457288(A)
申请公布日期
1948.12.28
申请号
US19460646069
申请日期
1946.02.07
申请人
RADIO CORPORATION OF AMERICA
发明人
USSELMAN GEORGE L.
分类号
H04L27/12
主分类号
H04L27/12
代理机构
代理人
主权项
地址
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