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发明名称
Vorrichtung zum Vorpfaenden einer Kappe im Grubenausbau
摘要
申请公布号
DE1102079(B)
申请公布日期
1961.03.16
申请号
DE1958S056902
申请日期
1958.02.10
申请人
SAARBERGWERKE A. G.
发明人
BOST ALOIS
分类号
E21D15/58;E21D17/02
主分类号
E21D15/58
代理机构
代理人
主权项
地址
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