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发明名称
A METHOD OF AND A DEVIVE FOR QUIDING A WIRE IN THE WIRE BOLTING OF A ROCK
摘要
申请公布号
GB2182694(B)
申请公布日期
1989.04.19
申请号
GB19860023451
申请日期
1986.09.30
申请人
OY * TAMPELLA AB
发明人
JARMO * LEPPANEN
分类号
E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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