Vorrichtung zur Erzeugung einer frei schwebenden Projektionsflaeche fuer Reklamezwecke,申请号DE1928L071012D-传众专利搜索

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发明名称	Vorrichtung zur Erzeugung einer frei schwebenden Projektionsflaeche fuer Reklamezwecke
摘要
申请公布号	DE490052(C)	申请公布日期	1930.10.13
申请号	DE1928L071012D	申请日期	1928.02.15
申请人	DIPL.-ING. WALDEMAR VON LADINSKY;JOSEPH Z. DALINDA	发明人
分类号	G03B21/56	主分类号	G03B21/56
代理机构		代理人
主权项
地址

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