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发明名称
Frequency modulator
摘要
申请公布号
US2384789(A)
申请公布日期
1945.09.18
申请号
US19420430385
申请日期
1942.02.11
申请人
RADIO PATENTS CORPORATION
发明人
BELL DAVID ARTHUR
分类号
H03C3/40
主分类号
H03C3/40
代理机构
代理人
主权项
地址
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