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发明名称
Verfahren und Vorrichtung zum Einbringen der Drahtverzugspitzen beim Grubenausbau, insbesondere beim Streckenausbau
摘要
申请公布号
DE1029774(B)
申请公布日期
1958.05.14
申请号
DE1954L017938
申请日期
1954.02.10
申请人
LOEBBERT & CO. G.M.B.H.
发明人
LECHTENBOEHMER HANS
分类号
E21D11/15
主分类号
E21D11/15
代理机构
代理人
主权项
地址
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