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发明名称
Akustischer Widerstand für einen Wandler
摘要
申请公布号
AT295617(B)
申请公布日期
1972.01.10
申请号
AT19700007730
申请日期
1970.08.26
申请人
N.V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
G10K11/02;H04R1/22;(IPC1-7):H04R1/00
主分类号
G10K11/02
代理机构
代理人
主权项
地址
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