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H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
H01H50/76—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter using reed or blade spring
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FR384868D1907-12-101907-12-10Trembleur rapide indéréglable pour bobines d'induction
ExpiredFR384868A
(fr)