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发明名称
Perfectionnements apportés aux dispositifs de soutènement mécanisés pour galeries de mines dans lesquels les organes de soutènement voisins, en forme de cadres, sont reliés entre eux par des éléments de guidage
摘要
申请公布号
FR1151688(A)
申请公布日期
1958.02.04
申请号
FRD1151688
申请日期
1956.06.18
申请人
BECORIT GRUBENAUSBAU G.M.B.H.
发明人
分类号
E21D23/00;E21D23/04
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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