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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A47J
KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
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41/00
Thermally-insulated vessels, e.g. flasks, jugs, jars
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A47J41/02
Vacuum-jacket vessels, e.g. vacuum bottles
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A47J41/022
Constructional details of the elements forming vacuum space
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A47J41/028