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发明名称
Protection element for all-in-the-ear hearing aid
摘要
申请公布号
US4984277(A)
申请公布日期
1991.01.08
申请号
US19880255717
申请日期
1988.10.11
申请人
GN DANOVOX A/S
发明人
BISGAARD, PETER N.;OOMS, SIMON
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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