11020 ⎘
Cooking-vessels; Water-boiling vessels, e.g. kettles electrically heated with heating elements immersed in the water the heating elements being electrodes
Electrochemical descaling by pulsed signal reversal
#2Kettle
#3Instant water heater with PTC plastic conductive electrodes
#4Liquid heating apparatus and method
#5Instant water heater with PTC plastic conductive electrodes