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发明名称
Improvements in or relating to coal-getting machines
摘要
申请公布号
GB1081552(A)
申请公布日期
1967.08.31
申请号
GB19650007024
申请日期
1965.02.18
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
LOBBE ARMIN
分类号
E21C27/34
主分类号
E21C27/34
代理机构
代理人
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