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发明名称
Mine Roof Support System Including an Expansion Anchor with Means Assisting Resin Component Mixing and Method of Installation Thereof
摘要
申请公布号
CA2167655(A1)
申请公布日期
1997.03.14
申请号
CA19962167655
申请日期
1996.01.19
申请人
EASTERN COMPANY (THE)
发明人
WRIGHT, RAYMOND L.
分类号
E21D20/02;E21D21/00;(IPC1-7):E21D21/00
主分类号
E21D20/02
代理机构
代理人
主权项
地址
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