Lehrgerät zur audio-visuellen Präsentation von programmiertem Unterrichtsstoff

申请公布号：CH438807(A)

申请号：CH19660003105

申请日期：1966.03.04

申请公布日期：1967.06.30

申请人：

BROWN, BOVERI & CIE., AKTIENGESELLSCHAFT

发明人：WOERTCHE,RUDOLF;ROTTERMANN,GERHARD;FABER,KARL

分类号：A47C27/045;G09B5/06;(IPC1-7):G09B5/06

主分类号：A47C27/045

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