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发明名称
VORRICHTUNG UND VERFAHREN ZUM LEITEN VON VERSTÄRKTEM SCHALL ZU EINEM OHR.
摘要
申请公布号
DE68916437(T2)
申请公布日期
1997.02.06
申请号
DE1989616437T
申请日期
1989.09.14
申请人
EPIC CORP., HARDY, VA., US
发明人
WARD, GARY L., ROANOKE, VA 24014, US;MACALLISTER, M., DUNCAN, ROANOKE, VA 24018, US
分类号
H04R25/00;H04R25/02;(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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