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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A47G
HOUSEHOLD OR TABLE EQUIPMENT
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A47G19/22
Drinking vessels or saucers used for table service
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A47G19/2288
with means for keeping liquid cool or hot
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