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发明名称
Improvements in or relating to the mechanical dressing of coals, ores and similar materials
摘要
申请公布号
GB405874(A)
申请公布日期
1934.02.15
申请号
GB19330017844
申请日期
1933.06.22
申请人
LEON HOYOIS
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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