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发明名称
ZUR ERWÄRMUNG VON UNTERIRDISCHEN FORMATIONEN VERWENDETE TEMPERATURBEGRENZTE HEIZVORRICHTUNGEN
摘要
申请公布号
AT414840(T)
申请公布日期
2008.12.15
申请号
AT20050738853T
申请日期
2005.04.22
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
SANDBERG, CHESTER LEDLIE;VINEGAR, HAROLD J.
分类号
E21B43/24;E21B29/00;E21B36/04;E21B43/00;E21B43/12;E21B43/30;E21B43/38;H05B3/10;H05B3/14;H05B6/10
主分类号
E21B43/24
代理机构
代理人
主权项
地址
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