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发明名称
Time system
摘要
申请公布号
US2101432(A)
申请公布日期
1937.12.07
申请号
US19350017245
申请日期
1935.04.19
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
HARRISON LAURENCE S.
分类号
G04C11/00
主分类号
G04C11/00
代理机构
代理人
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地址
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