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Publication of FR1144017ApublicationCriticalpatent/FR1144017A/fr
H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
H01H9/16—Indicators for switching condition, e.g. "on" or "off"
H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
FR1144017D1952-03-171952-03-17Perfectionnement à des dispositifs d'éclairage électrique, notamment à des dispositifs d'éclairage temporaires
ExpiredFR1144017A
(fr)