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Priority to FR110765ApriorityCriticalpatent/FR1535559A/en
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Publication of FR1535559ApublicationCriticalpatent/FR1535559A/en
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R19/145—Indicating the presence of current or voltage
G01R19/155—Indicating the presence of voltage
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR110765A1967-06-161967-06-16
Method for selectively detecting the presence of electrical voltages and device for implementing this method
ExpiredFR1535559A
(en)