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发明名称
Waagerechte und senkrechte Binaer-Lochstempel
摘要
申请公布号
DE844224(C)
申请公布日期
1952.07.17
申请号
DE1950I003170
申请日期
1950.10.04
申请人
IBM DEUTSCHLAND INTERNATIONALE BUERO MASCHINEN GESELLSCHAFT M.B.H.
发明人
MAUL MICHAEL
分类号
主分类号
代理机构
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