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经营范围
发明名称
APPAREIL SERVANT AU CONTROLE DES CONNAISSANCES
摘要
申请公布号
BE867197(A1)
申请公布日期
1978.09.18
申请号
BE19781008886
申请日期
1978.05.18
申请人
LIBOIS JACQUES
发明人
分类号
G09B3/08;(IPC1-7):G09B/
主分类号
G09B3/08
代理机构
代理人
主权项
地址
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