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经营范围
发明名称
Control means for hydraulically operated advancing roof supports
摘要
申请公布号
GB1046941(A)
申请公布日期
1966.10.26
申请号
GB19630011991
申请日期
1963.03.26
申请人
ELECTRO-HYDRAULICS LIMITED
发明人
HANCOCK KENNETH GEORGE;LEE ROGER DEMANT;HAROLD ROBERT EDWIN
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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