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发明名称
VERFAHREN ZUR REINIGUNG DER RINGRAEUME VON BOHRLOECHERN MITTELS EINER FLUESSIGKEIT MIT GASPOLSTER
摘要
申请公布号
DD281852(A5)
申请公布日期
1990.08.22
申请号
DD19880323861
申请日期
1988.12.23
申请人
VEB ERDOEL-ERDGAS GOMMERN,DD
发明人
PACHOLKE,GEORG,DD;GOETZKE,NORBERT,DD;ELNS,INGE,DD;KOEHLER,SIEGFRIED,DD;MARKEST,HOLDER,DD;TIEDE,RAINER,DD;BECKER,GERHARD,DD;ROTH,WOLFGANG,DD;FOERSTER,MANFRED,DD
分类号
E21B37/00;(IPC1-7):E21B37/00
主分类号
E21B37/00
代理机构
代理人
主权项
地址
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