Patent classifications
A
HUMAN NECESSITIES
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A23
FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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A23K
FODDER
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A23K10/30
from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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A23K10/38
from distillers' or brewers' waste
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