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发明名称
Dispositif de soutènement et procédé pour la percée ou l'avancement en galerie et le soutènement provisoire de galeries utilisable notamment dans les mines
摘要
申请公布号
FR1298683(A)
申请公布日期
1962.07.13
申请号
FR19610871593
申请日期
1961.08.25
申请人
HERMANN SCHWARZ KOMMANDITGESELLSCHAFT
发明人
分类号
E21D9/00;E21D23/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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