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发明名称
METHOD OF AND SUPERSSOR FOR REDUSING NOISE LEVEL IN POSITIVELY VENTILATED MINE WORKINGS
摘要
申请公布号
PL270444(A1)
申请公布日期
1989.08.07
申请号
PL19880270444
申请日期
1988.02.02
申请人
GWARECTWO BUDOWNICTWA GORNICZE
发明人
NAPIERACZ TADEUSZ;SULKOWSKI JOZEF;SZYNDLER JAN;KOSTA EUGENIUSZ;ZADROZNY MARIAN;GOLASZEWSKI ANTONI;BERNADY ANDRZEJ;LEMISZKO STANISLAW
分类号
E21F1/10;G10K;G10K11/16;(IPC1-7):G10K/
主分类号
E21F1/10
代理机构
代理人
主权项
地址
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