Patent classifications
A
HUMAN NECESSITIES
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A47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
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A47L
DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
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15/00
Washing or rinsing machines for crockery or tableware
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A47L15/4236
Arrangements to sterilize or disinfect dishes or washing liquids
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A47L15/424
by using ozone
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