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发明名称
АКУСТИЧЕСКИЙ ПРЕОБРАЗОВАТЕЛЬ
摘要
申请公布号
RU69366(U1)
申请公布日期
2007.12.10
申请号
RU20070129059U
申请日期
2007.07.27
申请人
发明人
分类号
H04R23/00
主分类号
H04R23/00
代理机构
代理人
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地址
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