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发明名称
Transmitter
摘要
申请公布号
US2120800(A)
申请公布日期
1938.06.14
申请号
US19360070751
申请日期
1936.03.25
申请人
RADIO CORPORATION OF AMERICA
发明人
DITCHAM WILLIAM THEODORE
分类号
H03C1/20
主分类号
H03C1/20
代理机构
代理人
主权项
地址
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