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Pat. 10862412 United States, Int. Cl.22 H02P 6/28, H02M 1/12, H02M 7/5387, H02M 7/5395, H02P 25/22, H02M 1/00. Multi-phase brushless direct-current motor and drive method therefor : Appl. N 16/417652 : Filed 21.05.2019 : Pub. 08.12.2020 : / Chun To Lau ; Assignee Polycharm Development Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10862412/en?oq=US10862412.html (дата обращения: ДД.ММ.ГГГГ).