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经营范围
发明名称
MINERAL MINING APPARATUS
摘要
申请公布号
GB1522562(A)
申请公布日期
1978.08.23
申请号
GB19760049420
申请日期
1976.11.26
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21C27/34;E21C29/14;E21F13/06;(IPC1-7):E21C29/14
主分类号
E21C27/34
代理机构
代理人
主权项
地址
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