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经营范围
发明名称
Hydraulic anchoring apparatus for a conveyor situated in front of a coal face
摘要
申请公布号
GB928184(A)
申请公布日期
1963.06.12
申请号
GB19590031874
申请日期
1959.09.18
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21F13/10
主分类号
E21F13/10
代理机构
代理人
主权项
地址
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