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发明名称
Improvements in mining conveyors
摘要
申请公布号
GB588071(A)
申请公布日期
1947.05.13
申请号
GB19450002205
申请日期
1945.01.29
申请人
WILLIAM ARCHIBALD LOGAN
发明人
分类号
E21F13/08
主分类号
E21F13/08
代理机构
代理人
主权项
地址
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