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发明名称
扬声器
摘要
申请公布号
CN300893733D
申请公布日期
2009.03.18
申请号
CN200730343451.6
申请日期
2007.12.24
申请人
瑞声声学科技（常州）有限公司
发明人
向 群;何秋萍
分类号
14-01
主分类号
14-01
代理机构
深圳市维邦知识产权事务所
代理人
黄 莉
主权项
地址
213161江苏省常州市武进区高新技术产业开发区
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