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Pat. 11038368 United States, Int. Cl.22 H02J 1/00, B60R 16/033, H02J 4/00, H02J 7/00, H02J 7/35, H02M 5/42, H02M 7/04. Method of controlling power supply of caravan and power control device of caravan : Appl. N 16/726766 : Filed 24.12.2019 : Pub. 15.06.2021 : / Zhongwei Sun, Shiji Wu, Zhiyuan Zhong, Xuhe Liu ; Assignee Shenzhen Hello Tech Energy Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11038368/en?oq=US11038368.html (дата обращения: ДД.ММ.ГГГГ).