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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36/00
Parts, details or accessories of cooking-vessels
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A47J36/28
Warming devices generating the heat by exothermic reactions, e.g. heat released by the contact of unslaked lime with water
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