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发明名称
INSTALLATION OF TENSIONED ROCKBOLTS
摘要
申请公布号
GB8724559(D0)
申请公布日期
1987.11.25
申请号
GB19870024559
申请日期
1987.10.20
申请人
D'EXPLOSIFS ET DE PRODUITS CHIMIQUES SA
发明人
分类号
E21D21/00;F16B13/14;F16B31/02
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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