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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 GB1817863Aexternal-prioritypatent/GB958646A/en
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to FR973507ApriorityCriticalpatent/FR1392325A/fr
Application grantedgrantedCritical
Publication of FR1392325ApublicationCriticalpatent/FR1392325A/fr
H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
H01J29/86—Vessels; Containers; Vacuum locks
H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
FR973507A1963-05-081964-05-06Dispositif pour appliquer une couche de graphite colloïdal sur la surface intérieure d'une ampoule de verre
ExpiredFR1392325A
(fr)