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发明名称
HEARING AID WITH CONTACT SPRING DEVICE
摘要
申请公布号
JPS6331400(A)
申请公布日期
1988.02.10
申请号
JP19870178838
申请日期
1987.07.17
申请人
SIEMENS AG
发明人
GERUHARUTO BIYUTSUTONAA
分类号
H04R25/00;H04R25/02
主分类号
H04R25/00
代理机构
代理人
主权项
地址
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