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Publication of FR981652ApublicationCriticalpatent/FR981652A/fr
H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B3/00—Ohmic-resistance heating
H05B3/40—Heating elements having the shape of rods or tubes
H05B3/42—Heating elements having the shape of rods or tubes non-flexible
H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
H05B3/50—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material heating conductor arranged in metal tubes, the radiating surface having heat-conducting fins
FR981652D1949-01-071949-01-07Capacités à chauffage électrique et leur procédé de fabrication
ExpiredFR981652A
(fr)