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发明名称
Procédé pour la construction d'un revêtement en béton de puits de mine
摘要
申请公布号
FR1140203(A)
申请公布日期
1957.07.17
申请号
FRD1140203
申请日期
1956.01.16
申请人
STAMICARBON N. V.
发明人
分类号
E21D5/016
主分类号
E21D5/016
代理机构
代理人
主权项
地址
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