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发明名称
Zentrier- und Haltevorrichtung fuer freischwingende Grossflaechenmembranen elektrodynamischer Lautsprecher
摘要
申请公布号
DE558439(C)
申请公布日期
1932.09.07
申请号
DENDATL071209D
申请日期
申请人
LANGLOTZ & CO. FABRIK ELEKTROTECHNISCHER BEDARFSARTIKEL
发明人
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
主权项
地址
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