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发明名称
ANORDNUNG ZUR VERMINDERUNG DER SCHALLABSTRAHLUNG
摘要
申请公布号
DE7216142(U)
申请公布日期
1972.07.20
申请号
DE19720016142U
申请日期
1972.04.27
申请人
BBC AG
发明人
分类号
G10K11/16
主分类号
G10K11/16
代理机构
代理人
主权项
地址
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