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发明名称
Kopfhörer zur akustischen Geräuschverminderung
摘要
申请公布号
DE69821819(D1)
申请公布日期
2004.04.01
申请号
DE1998621819
申请日期
1998.04.21
申请人
BOSE CORP., FRAMINGHAM
发明人
SAPIEJEWSKI, ROMAN
分类号
H04R1/10;H04R1/28;H04R5/033;(IPC1-7):H04R1/28
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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