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
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR777102ApublicationCriticalpatent/FR777102A/fr
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/02—Details
H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
FR777102D1933-09-011934-08-10Tube à décharges électriques comportant une cathode à incandescence et une certaine quantité de matière liquide
ExpiredFR777102A
(fr)