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发明名称
BONE CONDUCTION HEARING ASSISTANCE DEVICE
摘要
申请公布号
EP1790197(A4)
申请公布日期
2009.01.21
申请号
EP20050791427
申请日期
2005.08.26
申请人
SCHUMAIER, DANIEL R.
发明人
SCHUMAIER, DANIEL R.
分类号
H04R25/00
主分类号
H04R25/00
代理机构
代理人
主权项
地址
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