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发明名称
Rolled members of channel or trough section particularly for the construction of mine frames
摘要
申请公布号
GB857744(A)
申请公布日期
1961.01.04
申请号
GB19590011231
申请日期
1959.04.02
申请人
FORGES ET ATELIERS DE LA NAVE
发明人
PIERRE EMILE
分类号
E21D11/20
主分类号
E21D11/20
代理机构
代理人
主权项
地址
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