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Publication of BE774595ApublicationCriticalpatent/BE774595A/xx
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
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BE774595A1970-10-281971-10-28Instrument de mesure indirecte du cos et de l'angle de decalaged'une charge electrique d'une ligne a courant alternatif
BE774595A
(fr)