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.)
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 filedfiledCritical
Application grantedgrantedCritical
Publication of FR827492ApublicationCriticalpatent/FR827492A/fr
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R31/24—Testing of discharge tubes
G01R31/25—Testing of vacuum tubes
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR827492D1937-06-051937-10-05Appareil d'examen pour lampes de t. s. f.
ExpiredFR827492A
(fr)