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发明名称
Frequency modulation device
摘要
申请公布号
US2551561(A)
申请公布日期
1951.05.01
申请号
US19490111492
申请日期
1949.08.20
申请人
CLEVELAND PATENTS, INCORPORATED
发明人
HICKOK ROBERT D.;WEISS WALTER A.
分类号
H03C3/28
主分类号
H03C3/28
代理机构
代理人
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地址
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