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发明名称
EXTENSIBLE MINE ROOF SUPPORT
摘要
申请公布号
AU567834(B2)
申请公布日期
1987.12.03
申请号
AU19860062572
申请日期
1985.11.15
申请人
SANTA, JOE & ASSOCIATES PTY. LTD.,
发明人
JOSE LUIS SANTA
分类号
E21D15/36;(IPC1-7):E21D15/36
主分类号
E21D15/36
代理机构
代理人
主权项
地址
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