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发明名称
Frequency-modulated carriersignal translating system
摘要
申请公布号
US2257092(A)
申请公布日期
1941.09.30
申请号
US19400321610
申请日期
1940.03.01
申请人
HAZELTINE CORPORATION
发明人
FREEMAN ROBERT L.
分类号
H03D3/12;H04B14/00
主分类号
H03D3/12
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代理人
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