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经营范围
发明名称
Coal plough
摘要
申请公布号
GB977163(A)
申请公布日期
1964.12.02
申请号
GB19630000849
申请日期
1963.01.08
申请人
GEWERKSCHAFT EISENHUTTE WESTFALIA
发明人
分类号
E21C35/12
主分类号
E21C35/12
代理机构
代理人
主权项
地址
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