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Patent classifications
A
HUMAN NECESSITIES
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A01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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A01K
ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
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31/00
Housing birds
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A01K31/002
Poultry cages, e.g. transport boxes
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A01K31/005
Battery breeding cages, with or without auxiliary features, e.g. feeding, watering, demanuring, heating, ventilation
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