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发明名称
TEACHING AID
摘要
申请公布号
JPS53135733(A)
申请公布日期
1978.11.27
申请号
JP19770049584
申请日期
1977.04.29
申请人
SONY CORP
发明人
NOMURA SHIGENORI;KANO TETSUZOU
分类号
G09B5/08;G09B5/04;G09B5/12
主分类号
G09B5/08
代理机构
代理人
主权项
地址
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