characterised by the use of electric means

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Control of temperature > characterised by the use of electric means

Child Classifications

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• G05D 23/1902
• G05D 23/1906
• G05D 23/1917
• G05D 23/1919
• G05D 23/1925
• G05D 23/1927
• G05D 23/1951
• G05D 23/20 with sensing elements having variation of electric or magnetic properties with change of temperature (G05D23/13 takes precedence)
• G05D 23/27 with sensing element responsive to radiation
• G05D 23/275 with sensing element expanding, contracting, or fusing in response to changes of temperature
• G05D 23/30 Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature