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发明名称
ELECTRONIC CLOCKS
摘要
申请公布号
US3509715(A)
申请公布日期
1970.05.05
申请号
USD3509715
申请日期
1966.02.01
申请人
GENERAL TIME CORP.
发明人
HEINZ A. DE KOSTER
分类号
G04G9/04;H01J17/48;H01J17/49;(IPC1-7):G04B19/30
主分类号
G04G9/04
代理机构
代理人
主权项
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