METHOD OF CARRYING OUT MINING WORK CLOSE TO UNDISTURBED SOIL IN UNDERGROUND COPPER ORE MINES,申请号PL19900287819-传众专利搜索

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发明名称	METHOD OF CARRYING OUT MINING WORK CLOSE TO UNDISTURBED SOIL IN UNDERGROUND COPPER ORE MINES
摘要
申请公布号	PL163818(B1)	申请公布日期	1994.05.31
申请号	PL19900287819	申请日期	1990.11.16
申请人	KGHM POLSKA MIEDZ-SA,ODDZIAL-ZAKLADY GORNICZE RUDNA	发明人	BUGAJSKI WITOLD;CIESZKOWSKI HENRYK;JARMUZEK JERZY;MAZUR JERZY;MROZEK KAZIMIERZ;SIEWIERSKI STANISLAW;WAIS ANDRZEJ
分类号	E21C41/22;(IPC1-7):E21C41/22	主分类号	E21C41/22
代理机构		代理人
主权项
地址

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