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发明名称
Einrichtung fuer leuchtende Erdgloben als Weltzeituhr mit 24-Stunden-AEquator bei gleichzeitiger Darstellung der Tages- und Nachtzeiten im Jahresablauf
摘要
申请公布号
DE2022445(A1)
申请公布日期
1971.11.25
申请号
DE19702022445
申请日期
1970.05.08
申请人
DIEWERGE,BERND
发明人
DIEWERGE,BERND
分类号
G04B19/22;G09B27/08
主分类号
G04B19/22
代理机构
代理人
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