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发明名称
Leuchtflaeche mit untereinander parallelen, lichtreflektierenden Rippen, die von einer an einem Ende der Flaeche angeordneten Lichtquelle angestrahlt werden
摘要
申请公布号
DE519221(C)
申请公布日期
1931.02.25
申请号
DE1929L074374D
申请日期
1929.03.02
申请人
ANTON LANG
发明人
分类号
G09F13/16
主分类号
G09F13/16
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代理人
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