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发明名称
Frequency control circuits
摘要
申请公布号
US2201978(A)
申请公布日期
1940.05.28
申请号
US19380237052
申请日期
1938.10.26
申请人
RADIO CORPORATION
发明人
BEDFORD ALDA V.
分类号
H03L7/24;H04N5/12
主分类号
H03L7/24
代理机构
代理人
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地址
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