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Pat. 10374542 United States, Int. Cl.22 H02P 7/29, H02K 17/16, H02M 5/458, H02M 7/00, H02P 7/06, H02P 27/04. Electric submersible pump variable speed drive controller : Appl. N 15/955864 : Filed 18.04.2018 : Pub. 06.08.2019 : / Tom G. Yohanan, Ryan Bridwell Ashbaugh, John Vanderstaay Kenner ; Assignee Halliburton Energy Services Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10374542/en?oq=US10374542.html (дата обращения: ДД.ММ.ГГГГ).