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发明名称
Improvements in arrangements for frequency measurement
摘要
申请公布号
GB583794(A)
申请公布日期
1946.12.31
申请号
GB19420009658
申请日期
1942.07.10
申请人
STANDARD TELEPHONES AND CABLES LIMITED;CHARLES WILLIAM EARP
发明人
分类号
G01R25/00
主分类号
G01R25/00
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