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经营范围
发明名称
Tabulating machine
摘要
申请公布号
US2126621(A)
申请公布日期
1938.08.09
申请号
US19330704768
申请日期
1933.12.30
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DALY GEORGE F.
分类号
主分类号
代理机构
代理人
主权项
地址
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