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发明名称
Lesevorrichtung
摘要
申请公布号
DE547143(C)
申请公布日期
1932.03.21
申请号
DENDATZ018462D
申请日期
申请人
OTTO ZIMMERMANN
发明人
分类号
G09B17/00
主分类号
G09B17/00
代理机构
代理人
主权项
地址
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