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A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
A23B2/00—Preservation of foods or foodstuffs, in general
A23B2/30—Preservation of foods or foodstuffs, in general by heating materials in packages which are not progressively transported through the apparatus
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FR810471D1936-09-071936-09-07Appareil pour fermer les verres à conserves et récipients similaires
ExpiredFR810471A
(fr)