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发明名称
Frequency meter
摘要
申请公布号
US3034052(A)
申请公布日期
1962.05.08
申请号
US19590803521
申请日期
1959.04.01
申请人
DAYSTROM, INCORPORATED
发明人
ESTOPPEY ROYDEN F.
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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