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Pat. 10658951 United States, Int. Cl.22 H02P 1/02, H02H 9/00, H02M 1/36, H02M 7/06, H02P 6/20, H02P 29/024, H03K 5/1536, H03K 17/567, H02M 1/42. Electric working machine and method for smoothing AC power supplied thereto : Appl. N 15/657484 : Filed 24.07.2017 : Pub. 19.05.2020 : / Yuki Kawai, Itsuku Kato ; Assignee Makita Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10658951/en?oq=US10658951.html (дата обращения: ДД.ММ.ГГГГ).