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发明名称
Kappschuh fuer den Grubenausbau mit Stegprofilen
摘要
申请公布号
DE2020201(A1)
申请公布日期
1971.11.11
申请号
DE19702020201
申请日期
1970.04.25
申请人
LORENZ-POLYGON-AUSBAU GMBH
发明人
ERDMANN,HERBERT
分类号
E21D11/34
主分类号
E21D11/34
代理机构
代理人
主权项
地址
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