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发明名称
Improvements in or relating to yielding mine-shoring
摘要
申请公布号
GB969726(A)
申请公布日期
1964.09.16
申请号
GB19630006928
申请日期
1963.02.21
申请人
HAYDEN-NILOS LIMITED
发明人
NEALE LESLIE ARTHUR
分类号
E21D11/18;E21D15/22
主分类号
E21D11/18
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代理人
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