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发明名称
AIR CONDUCTION HEARING DEVICE
摘要
申请公布号
EP0809921(A1)
申请公布日期
1997.12.03
申请号
EP19950911007
申请日期
1995.02.15
申请人
EARCRAFT TECHNOLOGIES, INC.
发明人
WEEKS, ERIC, L.
分类号
H04R25/00;(IPC1-7):H04R25/00
主分类号
H04R25/00
代理机构
代理人
主权项
地址
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