Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02K
DYNAMO-ELECTRIC MACHINES
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21/00
Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
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H02K21/04
Windings on magnets for additional excitation; ; Windings and magnets for additional excitation
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H02K21/042
with permanent magnets and field winding both rotating
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H02K21/044
Rotor of the claw pole type
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