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发明名称
Control means for record controlled accounting machines
摘要
申请公布号
US2120233(A)
申请公布日期
1938.06.14
申请号
US19330662250
申请日期
1933.03.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DALY GEORGE F.;DICKINSON ARTHUR H.
分类号
G06F7/46
主分类号
G06F7/46
代理机构
代理人
主权项
地址
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