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发明名称
a sounding board having fore-back plate change function for sound absorption
摘要
申请公布号
KR101186453(B1)
申请公布日期
2012.09.27
申请号
KR20120016363
申请日期
2012.02.17
申请人
发明人
分类号
E01F8/00;E04B1/86
主分类号
E01F8/00
代理机构
代理人
主权项
地址
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