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发明名称
Apparat til genindvinding af opspolet rörledning i et borehul
摘要
申请公布号
DK0975853(T3)
申请公布日期
2005.06.27
申请号
DK19990908080T
申请日期
1999.02.16
申请人
HENRY A. BERNAT
发明人
BERNAT, HENRY, A.
分类号
E21B19/22;E21B28/00;E21B31/00;(IPC1-7):E21B31/00
主分类号
E21B19/22
代理机构
代理人
主权项
地址
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