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Alain Ravex
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Sassenage, FR
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last 30 patents
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Patent Grant
Apparatus and method for extracting cooling power from helium in a...
Patent number
6,915,642
Issue date
Jul 12, 2005
L'Air Liquide Societe Anonyme A Directoire et Conseil de Surveillance pour l'...
Alain Ravex
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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last 30 patents
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Patent Application
Apparatus and method for extracting cooling power from helium in a...
Publication number
20030163996
Publication date
Sep 4, 2003
Alain Ravex
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...