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经营范围
发明名称
MINING MACHINE
摘要
申请公布号
GB1498425(A)
申请公布日期
1978.01.18
申请号
GB19740039009
申请日期
1975.09.04
申请人
DOSCO OVERSEAS ENG LTD
发明人
分类号
E21C35/20;E21D9/10;E21D9/12;(IPC1-7):E21D9/12
主分类号
E21C35/20
代理机构
代理人
主权项
地址
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