Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F24
HEATING; RANGES; VENTILATING
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F24H
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
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F24H15/30
characterised by control outputs; characterised by the components to be controlled
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F24H15/355
Control of heat-generating means in heaters
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F24H15/37
of electric heaters
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