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发明名称
摘要
申请公布号
DE8516287(U1)
申请公布日期
1985.10.31
申请号
DE19850016287U
申请日期
1985.06.04
申请人
BATTERT, GUENTER, 4722 ENNIGERLOH, DE
发明人
分类号
G09B23/28;(IPC1-7):G09F9/00
主分类号
G09B23/28
代理机构
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