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发明名称
护树砖
摘要
申请公布号
CN3110204D
申请公布日期
1999.05.12
申请号
CN98326199.7
申请日期
1998.11.04
申请人
北京宗园建材有限公司
发明人
徐登辉
分类号
25-01-B0483
主分类号
25-01-B0483
代理机构
大兴县专利事务所
代理人
高云瑞; 绳立成
主权项
地址
102600北京市大兴县垡上乡东赵村东侧北京宗园建材有限公司
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