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VER GLUHLAMPEN und ELECTRICITA
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VER GLUHLAMPEN und ELECTRICITA
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Application filed by VER GLUHLAMPEN und ELECTRICITAfiledCriticalVER GLUHLAMPEN und ELECTRICITA
Application grantedgrantedCritical
Publication of FR46073EpublicationCriticalpatent/FR46073E/en
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
FR46073D1935-03-211935-03-21
Gas-filled incandescent electric lamp
ExpiredFR46073E
(en)