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发明名称
Lochmaschine fuer schrittweises Lochen von Karten mit Lochkombinationen
摘要
申请公布号
DE846935(C)
申请公布日期
1952.08.18
申请号
DE1948P016274
申请日期
1948.10.02
申请人
IBM DEUTSCHLAND INTERNATIONALE BUERO MASCHINEN GESELLSCHAFT M.B.H.
发明人
SCHEERER WALTER DIPL.-ING.
分类号
主分类号
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