Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Langguth & Haar
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Langguth & Haar
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Publication date
Application filed by Langguth & HaarfiledCriticalLangguth & Haar
Application grantedgrantedCritical
Publication of FR515763ApublicationCriticalpatent/FR515763A/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
H05B1/00—Details of electric heating devices
H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
H05B1/0202—Switches
H05B1/0208—Switches actuated by the expansion or evaporation of a gas or liquid
FR515763A1920-05-191920-05-19Perfectionnements aux récipients de chauffage électriques automatiques pour l'eau ou tout autre liquide
ExpiredFR515763A
(fr)