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发明名称
Frequency measuring system
摘要
申请公布号
US2519765(A)
申请公布日期
1950.08.22
申请号
US19460668300
申请日期
1946.05.08
申请人
JEFFRIES CARSON D;OVERACKER HORACE E
发明人
JEFFRIES CARSON D.;OVERACKER HORACE E.
分类号
G01R23/00
主分类号
G01R23/00
代理机构
代理人
主权项
地址
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