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发明名称
Improvements in or relating to apparatus for recording on statistical record cards
摘要
申请公布号
GB529647(A)
申请公布日期
1940.11.26
申请号
GB19390015301
申请日期
1939.05.23
申请人
DEUTSCHE HOLLERITH MASCHINEN GESELLSCHAFT M.B.H.
发明人
分类号
主分类号
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