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发明名称
METHOD OF AND APPARATUS FOR CONTROLLING DUSTINESS OF AIR
摘要
申请公布号
PL280482(A1)
申请公布日期
1991.01.14
申请号
PL19890280482
申请日期
1989.07.06
申请人
PRZED EKSPLOATACJI WEGLA ZACHO
发明人
KAROWIEC KRZYSZTOF;STUDENT ROMUALD;DYDACKI HENRYK;WINDERA JOZEF
分类号
E21F5/00;(IPC1-7):E21F5/00
主分类号
E21F5/00
代理机构
代理人
主权项
地址
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