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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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