Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
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41/00
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
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H01F41/02
for manufacturing cores, coils, or magnets
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H01F41/0253
for manufacturing permanent magnets
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H01F41/0293
diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
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