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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30/00
Processes specially adapted for preservation of materials in order to produce animal feeding-stuffs
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A23K30/15
using chemicals or microorganisms for ensilaging
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A23K30/18
using microorganisms or enzymes
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