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Publication of FR879737ApublicationCriticalpatent/FR879737A/fr
H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
H01H73/02—Details
H01H73/18—Means for extinguishing or suppressing arc
FR879737D1941-07-301942-02-26Dispositif pour l'extinction de l'arc électrique, notamment pour interrupteurs automatiques de ligne
ExpiredFR879737A
(fr)