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G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/19—Control of temperature characterised by the use of electric means
G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
Schaltung zur Temperaturregelung fuer mit Drehstrom betaetigte elektrische OEfen mit mindestens zwei waermeleitend mit dem Ofenraum verbundenen Thermostaten