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CENTRAL de l ECLAIRAGE LAB
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CENTRAL de l ECLAIRAGE LAB
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Application grantedgrantedCritical
Publication of FR96141EpublicationCriticalpatent/FR96141E/fr
H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
FR96141D1968-11-29Perfectionnements aux lampes a decharge dans la vapeur de mercure a basse pression.
ExpiredFR96141E
(fr)