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发明名称
Centralized visual tape deck
摘要
申请公布号
US3230825(A)
申请公布日期
1966.01.25
申请号
US19620171094
申请日期
1962.02.05
申请人
INSTRUCTOMATIC, INC.
发明人
KNIGHT SIDNEY
分类号
G09B19/06
主分类号
G09B19/06
代理机构
代理人
主权项
地址
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