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经营范围
发明名称
ACOUSTIC DIAPHRAGM AND SPEAKER
摘要
申请公布号
KR101011996(B1)
申请公布日期
2011.01.31
申请号
KR20080077376
申请日期
2008.08.07
申请人
发明人
分类号
H04R7/02
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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