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发明名称
A ROOF SUPPORT SYSTEM FOR A MINE
摘要
申请公布号
GB2172318(A)
申请公布日期
1986.09.17
申请号
GB19860000730
申请日期
1986.01.14
申请人
* JENNMAR CORPORATION
发明人
KEN * BARISH;PAUL * YACISIN
分类号
E21D11/00;(IPC1-7):E21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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