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发明名称
Dispositif d'assemblage rigide de profilés de soutènement utilisable notamment dans les mines
摘要
申请公布号
FR1235115(A)
申请公布日期
1960.07.01
申请号
FR19590804950
申请日期
1959.09.11
申请人
BOCHUMER GESELLSCHAFT FUER GRUBENAUSBAU UND TECHNIK M.B.H.
发明人
分类号
E21D11/22
主分类号
E21D11/22
代理机构
代理人
主权项
地址
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