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发明名称
Electronic modulator for constant frequency variable dot transmission
摘要
申请公布号
US2279930(A)
申请公布日期
1942.04.14
申请号
US19390287019
申请日期
1939.07.28
申请人
RADIO CORPORATION OF AMERICA
发明人
SHELBY ROBERT EVART
分类号
H03K7/08
主分类号
H03K7/08
代理机构
代理人
主权项
地址
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