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发明名称
摘要
申请公布号
DE3130710(C2)
申请公布日期
1987.04.09
申请号
DE19813130710
申请日期
1981.08.03
申请人
DOWTY MINING EQUIPMENT LTD., ASHCHURCH, TEWKESBURY,GLOUCESTERSHIRE, GB
发明人
BISHOP, CHRISTOPHER JOHN, TEWKESBURY, GLOUCESTERSHIRE, GB;CUMNER, GEOFFREY MILES, BROCKWORTH, GLOUCESTERSHIRE, GB;WATERS, JOHN HENRY, CHELTENHAM, GLOUCESTERSHIRE, GB
分类号
E21D17/02;E21D17/05;E21D17/054;E21D23/06;(IPC1-7):E21D23/06
主分类号
E21D17/02
代理机构
代理人
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