Priority date (The priority date 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 date listed.)
Publication of NL52142CpublicationCriticalpatent/NL52142C/xx
H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
H01J7/183—Composition or manufacture of getters
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
H01J9/38—Exhausting, degassing, filling, or cleaning vessels