发明名称 AUDIO/VISUAL TEACHING DEVICE
摘要 The specification discloses an audio/visual teaching device capable of operation in either a programming mode or in a playback mode. In the programming mode, an operator may produce a magnetic tape having desired voice information and position information which can later be used on other of the devices so that the voice and the position will be reproduced.
申请公布号 US3691650(A) 申请公布日期 1972.09.19
申请号 USD3691650 申请日期 1970.12.11
申请人 ELECTRONIC ASSOCIATES INC. 发明人 FLOYD L. ARNOLD;JAMES R. PATMORE
分类号 G09B5/06;(IPC1-7):G09B5/06 主分类号 G09B5/06
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