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发明名称
DISPOSITIF DE POUSSAGE AU MOYEN DE VERINS HYDRAULIQUES
摘要
申请公布号
BE869724(A1)
申请公布日期
1979.02.12
申请号
BE19786046571
申请日期
1978.08.11
申请人
CHARBONNAGES DE FRANCE
发明人
分类号
E21D23/16;E21C35/14;E21D23/20;E21F13/08;F15B11/15;F15B11/16;(IPC1-7):F15B/
主分类号
E21D23/16
代理机构
代理人
主权项
地址
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