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Pat. 10763026 United States, Int. Cl.22 H01F 27/28, H01F 17/04, H01F 27/00, H01F 27/02, H01F 27/08, H01F 27/29, H01F 27/40, H02M 3/156, H02M 3/28, H01F 30/00, H02M 1/32. Device : Appl. N 15/792766 : Filed 25.10.2017 : Pub. 01.09.2020 : / Satoru Fujita ; Assignee Fuji Electric Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10763026/en?oq=US10763026.html (дата обращения: ДД.ММ.ГГГГ).