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发明名称
Improvements in the separation of fine heavy particles from coal of small size
摘要
申请公布号
GB727793(A)
申请公布日期
1955.04.06
申请号
GB19500027725
申请日期
1950.11.13
申请人
EDMOND HARVENGT
发明人
分类号
B03B5/62
主分类号
B03B5/62
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代理人
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