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Pat. 10432020 United States, Int. Cl.22 B66B 1/06, B66B 5/02, B66B 11/04, H02J 9/06, H02M 5/458. Emergency back-up power system for traction elevators : Appl. N 15/427098 : Filed 08.02.2017 : Pub. 01.10.2019 : / James C. Hall ; Assignee Reynolds and Reynolds Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10432020/en?oq=US10432020.html (дата обращения: ДД.ММ.ГГГГ).