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发明名称
BAR SCREEN FOR SMALL SIZE GRAIN CLASSIFICATION OF HARD COAL IN PARTICULARLAVNYM OBRAZOM KAMENNOGO UGLJA
摘要
申请公布号
PL121613(B2)
申请公布日期
1982.05.31
申请号
PL19800223205
申请日期
1980.04.01
申请人
发明人
分类号
B07B;B07B1/04;(IPC1-7):B07B1/04
主分类号
B07B
代理机构
代理人
主权项
地址
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