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发明名称
Lehrmittel fuer die Vorfahrt an Kreuzungen gleichberechtigter Strassen
摘要
申请公布号
DE856962(C)
申请公布日期
1952.11.24
申请号
DE1950B012574
申请日期
1950.11.19
申请人
BEYERLEIN ADOLF
发明人
BEYERLEIN ADOLF
分类号
G09B19/14
主分类号
G09B19/14
代理机构
代理人
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地址
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