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G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
G01R11/56—Special tariff meters
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FR517831A1917-04-281919-01-11Compteur d'ampère-carré-heures (ampère-carré-heure-mètre) pour installations à courant continu et à courant alternatif
ExpiredFR517831A
(fr)