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FR519132A1917-12-031920-07-06Procédé et dispositif pour la production de mélanges gazeux d'azote et d'acide carbonique, pauvres en oxygène
ExpiredFR519132A
(fr)
Procédé et dispositif pour la préparation d'acide azotique concentré par combustion catalytique d'ammoniaque avec de l'oxygène ou avec des gaz riches en oxygène