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MOORE LICHT AG
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MOORE LICHT AG
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Application grantedgrantedCritical
Publication of FR18632EpublicationCriticalpatent/FR18632E/fr
H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
FR18632D1912-04-13Procédé et dispositif pour produire et conserver une coloration lumineuse constante dans les tubes éclairants à vide
ExpiredFR18632E
(fr)
Procédé et appareil pour diriger le flux lumineux d'une source de lumière constante dans les applications de la télévision et de l'enregistrement lumineux du son