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发明名称
MINE SUPPORTS
摘要
申请公布号
GB2215763(B)
申请公布日期
1992.04.01
申请号
GB19890003140
申请日期
1989.02.13
申请人
GYORGY * SZENTAI
发明人
GYORGY * SZENTAI
分类号
E21D19/00;E21D23/00;(IPC1-7):E21D23/04
主分类号
E21D19/00
代理机构
代理人
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