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经营范围
发明名称
MINERAL WINNING MACHINE AND SYSTEM
摘要
申请公布号
GB2081778(B)
申请公布日期
1984.03.07
申请号
GB19810024543
申请日期
1981.08.11
申请人
DRESSER EUROPE SA
发明人
分类号
E21C27/02;E21C29/02;(IPC1-7):E21C27/32
主分类号
E21C27/02
代理机构
代理人
主权项
地址
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