Patent classifications
A
HUMAN NECESSITIES
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A23
FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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A23J
PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS
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1/00
Obtaining protein compositions for foodstuffs; Bulk opening of eggs and separation of yolks from whites
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A23J1/10
from hair, feathers, horn, skins, leather, bones, or the like
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