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经营范围
发明名称
A BACKPLATELESS SILICON MICROPHONE
摘要
申请公布号
KR101109916(B1)
申请公布日期
2012.03.13
申请号
KR20077011994
申请日期
2004.11.29
申请人
发明人
分类号
H04R19/04
主分类号
H04R19/04
代理机构
代理人
主权项
地址
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