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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSFfiledCriticalLe Materiel Telephonique Thomson CSF
Application grantedgrantedCritical
Publication of FR653863ApublicationCriticalpatent/FR653863A/fr
H01J17/00—Gas-filled discharge tubes with solid cathode
H01J17/38—Cold-cathode tubes
H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00—Discharge tubes and lamps
H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
H01J2893/0065—Electrode systems
H01J2893/0067—Electrode assembly without control electrodes, e.g. including a screen
FR653863D1928-05-041928-05-04Perfectionnements aux lampes à décharge incandescente
ExpiredFR653863A
(fr)