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Pat. 9991813 United States, Int. Cl.22 H02J 3/00, H02M 5/293, H04B 3/54. Method for data transmission from a transmitter to a receiver in an AC power supply system, and apparatus for data transmission with AC power supply systems : Appl. N 13/498130 : Filed 30.09.2010 : Pub. 05.06.2018 : / Eckhard Brockmann, Wilfried Beck, Wolfgang Kemmler, Volker Deckers ; Assignee Aizo Group Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9991813/en?oq=US9991813.html (дата обращения: ДД.ММ.ГГГГ).