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发明名称
Improvements in or relating to record-card-controlled multiplying machines
摘要
申请公布号
GB497974(A)
申请公布日期
1939.01.02
申请号
GB19370018466
申请日期
1937.07.02
申请人
THE BRITISH TABULATING MACHINE COMPANY LIMITED
发明人
分类号
G06F7/46
主分类号
G06F7/46
代理机构
代理人
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地址
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