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.)
ACEC
Umicore NV SA
Original Assignee
ACEC
Ateliers de Constructions Electriques de Charleroi SA
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 ACEC, Ateliers de Constructions Electriques de Charleroi SAfiledCriticalACEC
Application grantedgrantedCritical
Publication of FR984441ApublicationCriticalpatent/FR984441A/fr
H01J61/067—Main electrodes for low-pressure discharge lamps
H01J61/0672—Main electrodes for low-pressure discharge lamps characterised by the construction of the electrode
FR984441D1943-09-241943-09-24Cathode à incandescence activée pour tubes à décharges électriques dans les gaz ou vapeurs métalliques
ExpiredFR984441A
(fr)
Fremgangsmaade ved Fremstilling af Glasbeholdere til Glødelamper Elektronrør og lignende Vekuumbeholdere samt en til Brug ved Fremgangsmaadens Udøvelse anvendelig Paaføringsmasse.