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发明名称
JACK FOR INSTALLING MINE STOPPING
摘要
申请公布号
AU566341(B2)
申请公布日期
1987.10.15
申请号
AU19860056499
申请日期
1986.04.22
申请人
KENNEDY, J.M., KENNEDY, W.R.;KENNEDY W R
发明人
JOHN M. KENNEDY;WILLIAM R. KENNEDY
分类号
E21F17/103;(IPC1-7):E21D15/54;E21F1/14
主分类号
E21F17/103
代理机构
代理人
主权项
地址
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