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发明名称
Improvements in the dry dust freeing of coals and similar materials
摘要
申请公布号
GB690400(A)
申请公布日期
1953.04.22
申请号
GB19510003274
申请日期
1951.02.09
申请人
EDMOND HARVENGT
发明人
分类号
B07B4/02
主分类号
B07B4/02
代理机构
代理人
主权项
地址
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