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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A47J27/21
Water-boiling vessels, e.g. kettles
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A47J27/21058
Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
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A47J27/21083
with variable operating parameters, e.g. temperature or boiling period
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