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发明名称
Improvements in and relating to frequency measuring apparatus
摘要
申请公布号
GB831647(A)
申请公布日期
1960.03.30
申请号
GB19560013201
申请日期
1956.04.30
申请人
GENERAL ELECTRIC COMPANY
发明人
分类号
G01R23/00;G01R29/06;H03L7/06
主分类号
G01R23/00
代理机构
代理人
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地址
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