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发明名称
DUST FILTER FOR MINING
摘要
申请公布号
PL272357(A3)
申请公布日期
1989.07.24
申请号
PL19880272357
申请日期
1988.05.09
申请人
HOELTER H
发明人
HOLTER HEINZ;IGELBUSCHER HEINRICH
分类号
B01D;E21F;E21F5/10;(IPC1-7):B01D/;E21F/
主分类号
B01D
代理机构
代理人
主权项
地址
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