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经营范围
发明名称
Improvements in means for comparing the timing of a frequency controlling clock withthat of a standard clock
摘要
申请公布号
GB404316(A)
申请公布日期
1934.01.08
申请号
GB19320019387
申请日期
1932.07.08
申请人
INTERNATIONAL GENERAL ELECTRIC COMPANY INCORPORATED
发明人
分类号
G04C15/00
主分类号
G04C15/00
代理机构
代理人
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