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发明名称
Electric clock apparatus
摘要
申请公布号
US2039084(A)
申请公布日期
1936.04.28
申请号
US19290341176
申请日期
1929.02.19
申请人
THE STANDARD ELECTRIC TIME COMPANY
发明人
KEILLEN SAUL
分类号
G04C13/03
主分类号
G04C13/03
代理机构
代理人
主权项
地址
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