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发明名称
Procédé et équipement pour faire dévier un front de taille en dressant afin de l'amener dans une position en surplomb permettant d'abattre le charbon au moyen d'un rabot-bélier
摘要
申请公布号
FR1355408(A)
申请公布日期
1964.03.13
申请号
FR19630934198
申请日期
1963.05.09
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21C29/14
主分类号
E21C29/14
代理机构
代理人
主权项
地址
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