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Patent classifications
A
HUMAN NECESSITIES
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A23
FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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A23B
PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
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9/00
Preservation of edible seeds, e.g. cereals
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A23B9/16
Preserving with chemicals
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A23B9/24
in the form of liquids or solids
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A23B9/30
Inorganic compounds
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