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发明名称
Improvements in electrically operated calculating machines
摘要
申请公布号
GB673926(A)
申请公布日期
1952.06.18
申请号
GB19470027488
申请日期
1947.10.14
申请人
AKTIEBOLAGET DUBA
发明人
LARSEN FRIDTHIOF OSCAR VALDEMAR
分类号
G06F3/027
主分类号
G06F3/027
代理机构
代理人
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