Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Compagnie des Lampes
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Compagnie des Lampes
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Application filed by Compagnie des LampesfiledCriticalCompagnie des Lampes
Application grantedgrantedCritical
Publication of FR588950ApublicationCriticalpatent/FR588950A/fr
H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
FR588950D1922-01-261923-01-25Perfectionnements aux lampes à incandescence
ExpiredFR588950A
(fr)