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H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
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FR29679D1924-04-051924-04-05Constitution du circuit magnétique des bobines pupin et des transformateurs multiplicateurs de fréquence
ExpiredFR29679E
(fr)