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发明名称
Interval timer
摘要
申请公布号
US2354368(A)
申请公布日期
1944.07.25
申请号
US19420425397
申请日期
1942.01.02
申请人
INTERNATIONAL REGISTER COMPANY
发明人
GALLAGHER WILLIAM P.
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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