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发明名称
PIEZOELECTRIC SPEAKER
摘要
申请公布号
KR20050123419(A)
申请公布日期
2005.12.29
申请号
KR20040048073
申请日期
2004.06.25
申请人
PARK, BYOUNG YOUN
发明人
PARK, BYOUNG YOUN
分类号
H04R17/00
主分类号
H04R17/00
代理机构
代理人
主权项
地址
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