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发明名称
Electrically controlled platen operating mechanism for time stamps
摘要
申请公布号
US2496598(A)
申请公布日期
1950.02.07
申请号
US19440521933
申请日期
1944.02.11
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
RAST FREDERICK Q.
分类号
G07C1/06
主分类号
G07C1/06
代理机构
代理人
主权项
地址
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