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B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
FR571089D1922-12-021922-12-02Procédé pour l'extraction des tissus végétaux, animaux ou autres, de produits particuliers utilisables dans l'industrie
ExpiredFR571089A
(fr)
Procédé de fabrication de galettes, briquettes, pilules ou autres produits analogues pour l'affouragement des bestiaux ou la nourriture des volailles