E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/18 (2006.01) B01D 17/02 (2006.01) B01D 19/00 (2006.01) B09C 1/00 (2006.01) C02F 1/20 (2006.01) E21B 43/00 (2006.01) E21B 43/08 (2006.01) E21B 43/12 (2006.01)
Patent
CA 2049870
A system for expelling volatile impurities from groundwater and from the area of ground through which such groundwater flows, by the generation of a partial vacuum in a shaft of small diameter and by the introduction of air or other gases through a nozzle body into the groundwater within the shaft.
Ieg Industrie-Engineering Gmbh
Marks & Clerk
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