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发明名称
Rock bolt assembly
摘要
申请公布号
GB2137712(A)
申请公布日期
1984.10.10
申请号
GB19840007602
申请日期
1984.03.23
申请人
* PERARD TORQUE TENSION LIMITED
发明人
ERIC ARTHUR * JACKSON
分类号
E21D21/00;F16B13/06;(IPC1-7):F16B13/10
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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