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经营范围
发明名称
ELECTRONIC CALCULATION TRAINING MACHINE
摘要
申请公布号
JPS5574580(A)
申请公布日期
1980.06.05
申请号
JP19780148053
申请日期
1978.11.29
申请人
SHARP KK
发明人
ODA KOUICHI;KATAOKA YOSHIROU;SAKAGAMI TAKASHI
分类号
G09B7/02;G09B19/02
主分类号
G09B7/02
代理机构
代理人
主权项
地址
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