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Pat. 10622876 United States, Int. Cl.22 H02K 13/10, H02K 23/08, H02K 23/36, H02M 3/155, H02P 7/292. Electric drive apparatus, chopper, DC motor, and electric device : Appl. N 16/471012 : Filed 26.12.2017 : Pub. 14.04.2020 : / Aijuan Jin, Shaolong Li ; Assignee University of Shanghai For Science and Technology ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10622876/en?oq=US10622876.html (дата обращения: ДД.ММ.ГГГГ).