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发明名称
Système d'avance ou de ripage pour dispositif de soutènement en deux éléments, utilisable dans les mines
摘要
申请公布号
BE576320(A1)
申请公布日期
1959.07.01
申请号
BE19590576320
申请日期
1959.03.03
申请人
HERMANN SCHWARZ K.G.
发明人
分类号
(IPC1-7):E21D
主分类号
(IPC1-7):E21D
代理机构
代理人
主权项
地址
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