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发明名称
A roof support module
摘要
申请公布号
AU720908(B2)
申请公布日期
2000.06.15
申请号
AU19970036067
申请日期
1997.08.27
申请人
BHP STEEL (RP) PTY LTD
发明人
HELMUT ANTHONY DEMBECK
分类号
E21D11/00;E21D11/14;E21F17/00;(IPC1-7):E21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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