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经营范围
发明名称
MULTIPLICATION TRAINING DEVICE
摘要
申请公布号
JPS56162778(A)
申请公布日期
1981.12.14
申请号
JP19800066779
申请日期
1980.05.19
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
NAKANISHI TAKANAO;FUJITA TADAMASA;SAITOU HIDEO
分类号
G09B19/02;G09B7/02
主分类号
G09B19/02
代理机构
代理人
主权项
地址
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