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BREV CHARLES ARNOULD SOC D EXP
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BREV CHARLES ARNOULD SOC D EXP
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C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
C10C3/04—Working-up pitch, asphalt, bitumen by chemical means reaction by blowing or oxidising, e.g. air, ozone
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FR24752D1920-08-131920-10-25Procédé et appareil pour le traitement des goudrons et autres huiles lourdes en vue de l'obtention de brais agglomérants
ExpiredFR24752E
(fr)