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F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S13/00—Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape
F21S13/02—Devices intended to be fixed, e.g. ceiling lamp, wall lamp
F21S13/10—Devices intended to be fixed, e.g. ceiling lamp, wall lamp with a standard, e.g. street lamp
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FR790822D1935-06-031935-06-03Appareils autonomes d'éclairage par les gaz comprimés à très haute pression
ExpiredFR790822A
(fr)
Appareil d'éclairage ou d'irradiation comportant un tube à décharges refroidi par un liquide et renfermant de la vapeur métallique sous pression élevée