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发明名称
窨井盖
摘要
省略其他视图。
申请公布号
CN3531026D
申请公布日期
2006.05.24
申请号
CN200530107499.8
申请日期
2005.08.30
申请人
徐 勇
发明人
徐 勇
分类号
25-02
主分类号
25-02
代理机构
杭州九洲专利事务所有限公司
代理人
唐 迅
主权项
地址
310018浙江省杭州市经济技术开发区3号大街8号
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