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Electric heating

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
219050000 METAL HEATING (E.G., RESISTANCE HEATING) 2799
219200000 HEATING DEVICES 1955
219600000 INDUCTIVE HEATING 582
219678000 MICROWAVE HEATING 528
219764000 CAPACITIVE DIELECTRIC HEATING 7

Patent applications in class Electric heating

Patent applications in all subclasses Electric heating