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发明名称
铃铛(能响能静)
摘要
申请公布号
CN300880890D
申请公布日期
2009.02.04
申请号
CN200730340299.6
申请日期
2007.10.24
申请人
新昌县南瑞实验学校
发明人
贾咏卫
分类号
10-06
主分类号
10-06
代理机构
代理人
主权项
地址
312500浙江省新昌县城关镇南瑞实验学校
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