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发明名称
LICHTBILDWAND FUER DIE PROJEKTION VON DIAPOSITIVEN ODER FILMEN.
摘要
申请公布号
DE7010700(U)
申请公布日期
1970.06.25
申请号
DE19700010700U
申请日期
1970.03.24
申请人
PROJECTA N.V.
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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