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发明名称
Einrichtung an Lichtspieltheatern
摘要
申请公布号
DE841998(C)
申请公布日期
1952.06.23
申请号
DE1951K009456
申请日期
1951.03.28
申请人
KOESTRING ERICH
发明人
KOESTRING ERICH
分类号
G03B21/00
主分类号
G03B21/00
代理机构
代理人
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