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发明名称
新型助听装置
摘要
后视图与主视图对称,省略后视图。
申请公布号
CN87300178S
申请公布日期
1988.01.25
申请号
CN87300178
申请日期
1987.02.14
申请人
姚鸿昌
发明人
姚鸿昌
分类号
24-99-A0063
主分类号
24-99-A0063
代理机构
石家庄市专利事务所
代理人
王文宣
主权项
地址
河北省石家庄市和平西路
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