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发明名称
Method of winning ground heat - involves drilling without rotation and using natural pressure and temperature ratios with electro hydraulic effects
摘要
No further information at time of publication.
申请公布号
DE4008571(A1)
申请公布日期
1991.01.24
申请号
DE19904008571
申请日期
1990.03.14
申请人
BOCIAN, MANFRED, O-1147 BERLIN, DE
发明人
BOCIAN, MANFRED, O-1147 BERLIN, DE
分类号
E21B7/15;F24J3/08
主分类号
E21B7/15
代理机构
代理人
主权项
地址
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