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发明名称
MINE ROOF SUPPORTS
摘要
申请公布号
AU1252976(A)
申请公布日期
1977.10.06
申请号
AU19760012529
申请日期
1976.03.31
申请人
GULLICK DOBSON LTD.
发明人
ARCHELAIUS DAWSON ALLEN
分类号
E21D23/06
主分类号
E21D23/06
代理机构
代理人
主权项
地址
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