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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Telefunken AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
AEG AG
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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.)
Filing date
Publication date
Application filed by Allgemeine Elektricitaets Gesellschaft, AEG AG, Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbHfiledCriticalAllgemeine Elektricitaets Gesellschaft
Application grantedgrantedCritical
Publication of FR709544ApublicationCriticalpatent/FR709544A/fr
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
H01J9/02—Manufacture of electrodes or electrode systems
H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
H01J9/042—Manufacture, activation of the emissive part
Landscapes
Engineering & Computer Science
(AREA)
Manufacturing & Machinery
(AREA)
FR709544D1930-02-211931-01-16Procédé de fabrication de cathodes à oxydes
ExpiredFR709544A
(fr)