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发明名称
Sperrvorrichtung fuer Kartenloch- und Lochkartenpruefmaschinen
摘要
申请公布号
DE835078(C)
申请公布日期
1952.03.27
申请号
DE1948P016266
申请日期
1948.10.02
申请人
IBM DEUTSCHLAND INTERNATIONALE BUERO MASCHINEN GESELLSCHAFT M.B.H.
发明人
HOLZAPFEL EMIL
分类号
主分类号
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