H ELECTRICITY
H01 ELECTRIC ELEMENTS
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F41/00 Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F41/02 for manufacturing cores, coils, or magnets
H01F41/04 for manufacturing coils
H01F41/064 Winding non-flat conductive wires, e.g. rods, cables or cords