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发明名称
MINERAL WINNING MACHINES
摘要
申请公布号
GB2069030(B)
申请公布日期
1983.09.14
申请号
GB19810002360
申请日期
1981.01.27
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21C25/60;E21C27/02;(IPC1-7):E21C25/60;E21C27/00
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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