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发明名称
Frequency comparing systems
摘要
申请公布号
US3314014(A)
申请公布日期
1967.04.11
申请号
US19640343420
申请日期
1964.02.07
申请人
PLESSEY U.K. LIMITED
发明人
PERKINS KENNETH GEORGE
分类号
H03D13/00;H03L7/091;H04L27/16
主分类号
H03D13/00
代理机构
代理人
主权项
地址
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