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经营范围
发明名称
SOUND PRODUCING APPARATUS
摘要
申请公布号
KR20010073019(A)
申请公布日期
2001.07.31
申请号
KR1020017002492
申请日期
2001.02.27
申请人
发明人
分类号
F42B4/04
主分类号
F42B4/04
代理机构
代理人
主权项
地址
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