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TELEPHONES SOC IND
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TELEPHONES SOC IND
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Application filed by TELEPHONES SOC INDfiledCriticalTELEPHONES SOC IND
Application grantedgrantedCritical
Publication of FR449327ApublicationCriticalpatent/FR449327A/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
H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
H05B47/10—Controlling the light source
FR449327A1912-10-111912-10-11Commande à distance de plusieurs rhéostats indépendants au moyen d'une transmission mécanique unique
ExpiredFR449327A
(fr)