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发明名称
Alarm clock
摘要
申请公布号
US2350578(A)
申请公布日期
1944.06.06
申请号
US19430507160
申请日期
1943.10.21
申请人
BEARDSLEY OSCAR F
发明人
BEARDSLEY OSCAR F.
分类号
G04C23/16
主分类号
G04C23/16
代理机构
代理人
主权项
地址
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