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发明名称
Frequency control circuit
摘要
申请公布号
US2674720(A)
申请公布日期
1954.04.06
申请号
US19520299289
申请日期
1952.07.26
申请人
BELL TELEPHONE LABORATORIES, INCPORPORATED
发明人
LUND NEAN
分类号
H03C3/09
主分类号
H03C3/09
代理机构
代理人
主权项
地址
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