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经营范围
发明名称
Appareil pour enseigner
摘要
申请公布号
MC597(A)
申请公布日期
1967.01.31
申请号
MC19660000622
申请日期
1966.05.16
申请人
STILLIT GERALD BARRY
发明人
分类号
G09B7/06;(IPC1-7):G09B
主分类号
G09B7/06
代理机构
代理人
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