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发明名称
CARD STUDY APPARATUS
摘要
申请公布号
JPS5898771(A)
申请公布日期
1983.06.11
申请号
JP19810197122
申请日期
1981.12.08
申请人
GAKUSHIYUU KENKIYUUSHIYA:KK
发明人
MURAKAMI TATSUYA
分类号
G09B1/14;G09B3/02
主分类号
G09B1/14
代理机构
代理人
主权项
地址
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