Patent classifications
A
HUMAN NECESSITIES
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A23
FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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A23C
DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; PREPARATION THEREOF
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3/00
Preservation of milk or milk preparations
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A23C3/07
by irradiation, e.g. by microwaves; ; by sonic or ultrasonic waves
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A23C3/076
by ultraviolet or infrared radiation
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