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.)
Boehme Fettchemie GmbH
Original Assignee
Boehme Fettchemie GmbH
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
Priority claimed from DEB65211Aexternal-prioritypatent/DE1170640B/de
Application filed by Boehme Fettchemie GmbHfiledCriticalBoehme Fettchemie GmbH
Priority to FR918231ApriorityCriticalpatent/FR1341843A/fr
Application grantedgrantedCritical
Publication of FR1341843ApublicationCriticalpatent/FR1341843A/fr
H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
H01J1/02—Main electrodes
H01J1/34—Photo-emissive cathodes
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2201/00—Electrodes common to discharge tubes
H01J2201/34—Photoemissive electrodes
H01J2201/342—Cathodes
H01J2201/3421—Composition of the emitting surface
H01J2201/3423—Semiconductors, e.g. GaAs, NEA emitters
FR918231A1961-12-161962-12-11Procédé de préparation de produits d'addition d'oxydes d'alkylènes
ExpiredFR1341843A
(fr)