Top IPC subclasses
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1
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A23B
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1
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preserving, e.g. by canning, meat, fish, eggs, fruit, vegetables, edible seedschemical ripening of f
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2
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A23L
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1
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Foods, foodstuffs, or non-alcoholic beverages, not covered by subclasses A21D or A23B-A23J; their preparation or treatment, e.g. cooking, modification of nutritive qualities, physical treatment; preservation of foods or foodstuffs, in general
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