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发明名称
INFORMATION REPRODUCTION DEVICE AND LEARNING DEVICE
摘要
申请公布号
JPS5429635(A)
申请公布日期
1979.03.05
申请号
JP19770095002
申请日期
1977.08.10
申请人
RICOH KK
发明人
KONNO KAORU
分类号
G09B5/06;G03B31/00;G09B7/00;G11B31/00
主分类号
G09B5/06
代理机构
代理人
主权项
地址
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