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发明名称
Frequency measuring apparatus
摘要
申请公布号
US2907951(A)
申请公布日期
1959.10.06
申请号
US19560571329
申请日期
1956.03.13
申请人
GENERAL ELECTRIC COMPANY
发明人
CLARK EARL W.
分类号
G01R23/02
主分类号
G01R23/02
代理机构
代理人
主权项
地址
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