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FR DE MATERIEL ELECTR SOC
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FR DE MATERIEL ELECTR SOC
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H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F29/00—Variable transformers or inductances not covered by group H01F21/00
H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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FR45888D1935-03-041935-03-04Perfectionnements apportés aux postes de transformateurs électriques
ExpiredFR45888E
(fr)