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发明名称
DISPLAY UNIT FOR LEARNING DEVICE
摘要
申请公布号
JPS56161583(A)
申请公布日期
1981.12.11
申请号
JP19800065562
申请日期
1980.05.16
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
ASANUMA HIROMI;NAKANISHI TAKANAO;SAITOU HIDEO
分类号
G09B5/06;G09B7/00;G09B7/02;G09B19/02
主分类号
G09B5/06
代理机构
代理人
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