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发明名称
Improvements in apparatus for separating coal from dirt and like foreign substances
摘要
申请公布号
GB325284(A)
申请公布日期
1930.02.17
申请号
GB19280033729
申请日期
1928.11.17
申请人
WILLIAM HENRY BERRISFORD
发明人
分类号
B07B13/00
主分类号
B07B13/00
代理机构
代理人
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