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发明名称
Vorrichtung zur Erzeugung und Projektion von wechselnden optischen Darbietungen
摘要
申请公布号
DE521835(C)
申请公布日期
1931.03.25
申请号
DE1927G069417D
申请日期
1927.02.06
申请人
DR. DR. RICHARD GOLDSCHMIDT
发明人
分类号
F21S2/00;G09F19/18
主分类号
F21S2/00
代理机构
代理人
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地址
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