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Publication of FR867185ApublicationCriticalpatent/FR867185A/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
FR867185D1940-07-301940-07-30Perfectionnements aux appareils de chauffage électrique du type à fil et gaine et à leurs procédés de fabrication
ExpiredFR867185A
(fr)