Patent classifications
A
HUMAN NECESSITIES
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A23
FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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A23L
FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
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29/00
Foods or foodstuffs containing additives; Preparation or treatment thereof
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A23L29/20
containing gelling or thickening agents
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A23L29/275
of animal origin, e.g. chitin
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A23L29/281
Proteins, e.g. gelatin or collagen
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A23L29/284
Gelatin; Collagen
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