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发明名称
Elektrische Beleuchtung, insbesondere fuer Sprechmaschinen
摘要
申请公布号
DE566630(C)
申请公布日期
1932.12.22
申请号
DENDATG082194D
申请日期
申请人
ALBERT GEHRE
发明人
分类号
G11B33/02
主分类号
G11B33/02
代理机构
代理人
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