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Pat. 11193227 United States, Int. Cl.22 F04D 15/00, D06F 34/08, H02K 7/14, H02M 1/10, H02M 1/32, H02M 3/07, H02P 27/04, D06F 34/10. Voltage doubling circuit for laundry treating appliance with high power variable frequency drive : Appl. N 17/031981 : Filed 25.09.2020 : Pub. 07.12.2021 : / Daniel Quinn ; Assignee Whirlpool Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11193227/en?oq=US11193227.html (дата обращения: ДД.ММ.ГГГГ).