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Pat. 10974843 United States, Int. Cl.22 B64D 41/00, B64D 13/06, B64D 45/00, B64F 5/40, B64F 5/60, G01F 9/00, G05D 1/00, G07C 5/00, H01M 10/42, H01M 50/204, H01M 50/249, H01M 50/569, H02J 1/00, H02J 1/10, H02J 7/00, H02J 7/14, H02M 7/44. Hot-swappable hybrid APU for aircraft : Appl. N 15/927248 : Filed 21.03.2018 : Pub. 13.04.2021 : / Vernon Weng-Yew Chang, Charles Bernard Beuning, August Bryce Ratzlaff, David Lee Swartzendruber ; Assignee Textron Innovations Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10974843/en?oq=US10974843.html (дата обращения: ДД.ММ.ГГГГ).