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经营范围
发明名称
ANORDNING VED LAEREBOEKER.
摘要
申请公布号
NO874333(D0)
申请公布日期
1987.10.19
申请号
NO19870004333
申请日期
1987.10.19
申请人
VADLA, KNUT
发明人
VADLA, KNUT
分类号
G09B;(IPC1-7):G09B/
主分类号
G09B
代理机构
代理人
主权项
地址
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