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发明名称
METHOD OF DISINTEGRATION OF ROCKS AND PRODUCING THE BROKEN GROUNDS IN VICINITY OF THE WORKING FACE
摘要
申请公布号
CS196912(B1)
申请公布日期
1980.04.30
申请号
CS19770008964
申请日期
1977.12.29
申请人
ROCEK,ARNOST,CS;STAS,BRETISLAV,CS;ZENC,MILOS,CS;POZAR,JOSEF,CS
发明人
ROCEK,ARNOST,CS;STAS,BRETISLAV,CS;ZENC,MILOS,CS;POZAR,JOSEF,CS
分类号
E21F17/00;(IPC1-7):E21F17/00
主分类号
E21F17/00
代理机构
代理人
主权项
地址
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