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发明名称
VERFAHREN ZUM BOHREN VON BRUNNEN UND EINRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS
摘要
申请公布号
DD233155(A1)
申请公布日期
1986.02.19
申请号
DD19840268329
申请日期
1984.10.12
申请人
PALFFY,ENDRE,HU
发明人
PALFFY,ENDRE,HU
分类号
E21B43/00;(IPC1-7):E21B43/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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