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经营范围
发明名称
EDUCATIONAL AID
摘要
申请公布号
ZA8804236(B)
申请公布日期
1989.02.22
申请号
ZA19880004236
申请日期
1988.06.14
申请人
MARIA ROSINA SUSANNA BOTHA
发明人
MARIA ROSINA SUSANNA BOTHA
分类号
G09B
主分类号
G09B
代理机构
代理人
主权项
地址
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