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Pat. 9960711 United States, Int. Cl.22 H02J 7/34, H02J 1/10, H02J 3/38, H02M 3/158, H02M 7/49, H02M 7/493, H02M 7/5395, H02M 1/00. Single phase inverters cooperatively controlled to provide one, two, or three phase unipolar electricity : Appl. N 14/358471 : Filed 20.11.2012 : Pub. 01.05.2018 : / Sorin Spanoche, Mika Nuotio, David Stewart ; Assignee Zinniatek Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9960711/en?oq=US9960711.html (дата обращения: ДД.ММ.ГГГГ).