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发明名称
窨井盖
摘要
1.右视图与右视图对称,故省略右视图。2.仰视图与俯视图对称,故省略仰视图。
申请公布号
CN3338499D
申请公布日期
2003.11.26
申请号
CN03313156.2
申请日期
2003.05.19
申请人
朱继强
发明人
朱继强
分类号
25-02
主分类号
25-02
代理机构
青岛联智专利事务所有限公司
代理人
李伦波
主权项
地址
266041山东省青岛市李沧区四流中路187号
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