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发明名称
Modulation system
摘要
申请公布号
US2289183(A)
申请公布日期
1942.07.07
申请号
US19400336550
申请日期
1940.05.22
申请人
RADIO CORPORATION OF AMERICA
发明人
EHRET ROBERT J.;BARNES JOHN L.
分类号
H03C3/28;H03J7/04
主分类号
H03C3/28
代理机构
代理人
主权项
地址
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