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发明名称
MINE ROOF SUPPORT STRUCTURE
摘要
申请公布号
GB8328205(D0)
申请公布日期
1983.11.23
申请号
GB19830028205
申请日期
1983.10.21
申请人
WINCOBANK FOUNDRY & ENG LTD
发明人
分类号
E21D11/28
主分类号
E21D11/28
代理机构
代理人
主权项
地址
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