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发明名称
VERFAHREN UND VORRICHTUNG ZUM MESSEN DES FLUESSIGKEITSPEGELS IM UNTERGRUND
摘要
申请公布号
DE3933116(A1)
申请公布日期
1990.04.12
申请号
DE19893933116
申请日期
1989.10.04
申请人
GEOTECHNICAL INSTRUMENTS (UK) LTD., LEAMINGTON, WARWICKSHIRE, GB
发明人
SWEET, CHRISTOPHER RICHARD, STONEY STANTON, LEICESTERSHIRE, GB
分类号
E21B47/04;G01F23/28;G01F23/296
主分类号
E21B47/04
代理机构
代理人
主权项
地址
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