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Pat. 10594239 United States, Int. Cl.22 H02P 21/05, F25B 31/02, H02M 1/12, H02M 1/14, H02M 7/48, H02M 7/5387, H02M 7/5395, H02P 21/18, H02P 21/22, H02P 27/12, H02M 1/00. Motor drive device and refrigeration equipment : Appl. N 16/076732 : Filed 09.11.2017 : Pub. 17.03.2020 : / Dongsheng Li, Ken Kishita ; Assignee Hitachi Johnson Controls Air Conditioning Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10594239/en?oq=US10594239.html (дата обращения: ДД.ММ.ГГГГ).