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Pat. 10868423 United States, Int. Cl.22 H02J 3/06, H02J 3/18, H02M 7/219. Transmission device for energy transmission between multiple electrical energy networks : Appl. N 16/612430 : Filed 09.05.2017 : Pub. 15.12.2020 : / Felix Kammerer, Martin Pieschel ; Assignee Siemens Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10868423/en?oq=US10868423.html (дата обращения: ДД.ММ.ГГГГ).