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Jean-Francois Evrard
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Fontenay Sous Bois, FR
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last 30 patents
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Patent Grant
Device for analyzing at least one gas contained in a liquid, in par...
Patent number
7,748,266
Issue date
Jul 6, 2010
Geoservices Equipements
Jean-François Evrard
E21 - EARTH DRILLING MINING
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Patent Grant
Module for extracting gas from an underground liquid and installati...
Patent number
7,032,444
Issue date
Apr 25, 2006
Geoservices
Jérôme Breviere
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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Patent Application
Device for Analyzing at Least One Gas Contained in a Liquid, in Par...
Publication number
20090293605
Publication date
Dec 3, 2009
Jean-Francois Evrard
E21 - EARTH DRILLING MINING
Information
Patent Application
Module for extracting gas from an underground liquid and installati...
Publication number
20040231407
Publication date
Nov 25, 2004
Jerome Breviere
G01 - MEASURING TESTING