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发明名称
HEARING AID
摘要
申请公布号
JPH04354300(A)
申请公布日期
1992.12.08
申请号
JP19910129107
申请日期
1991.05.31
申请人
TERUMO CORP
发明人
YAGUCHI YOSHIAKI
分类号
H04R25/00;H04R25/02
主分类号
H04R25/00
代理机构
代理人
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