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经营范围
发明名称
MINERAL MINING MACHINE
摘要
申请公布号
AU499166(B2)
申请公布日期
1979.04.05
申请号
AU19770022046
申请日期
1977.02.08
申请人
COAL INDUSTRY (PATENTS) LTD
发明人
J.H. HODGKINSON
分类号
E21C27/22;E21D9/10;E21D11/40;(IPC1-7):E21D19/04
主分类号
E21C27/22
代理机构
代理人
主权项
地址
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