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发明名称
PERMANENTES LESEZEICHEN.
摘要
申请公布号
DE1876530(U)
申请公布日期
1963.08.01
申请号
DE196300O6936U
申请日期
1963.02.25
申请人
JOSEF OESER
发明人
JOSEF OESER
分类号
主分类号
代理机构
代理人
主权项
地址
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