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发明名称
煤层专用锚杆
摘要
省略其它视图。
申请公布号
CN3315085D
申请公布日期
2003.08.20
申请号
CN02341768.4
申请日期
2002.12.20
申请人
刘树桓
发明人
刘树桓;刘焕孝;刘焕学
分类号
10-05
主分类号
10-05
代理机构
泰安市泰昌专利事务所
代理人
姚德昌
主权项
地址
271208山东省新泰市羊流镇羊家庄村
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