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发明名称
TETNINGSANORDNING FOR DEN OEVRE ENDE AV ET STIGEROER ELLER EN TRANSPORTLEDNING.
摘要
申请公布号
NO871950(D0)
申请公布日期
1987.05.12
申请号
NO19870001950
申请日期
1987.05.12
申请人
OEMV AG
发明人
KROPATSCH, WOLFGANG
分类号
E21B33/00;E21B33/047;F16J15/08;(IPC1-7):E21B/
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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