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Pat. 10879792 United States, Int. Cl.22 H02M 1/44, H02M 1/00, H02M 1/15, H02M 3/06, H02M 3/07, H04R 25/00. Switched capacitor voltage converter for a rechargeable battery in a hearing aid : Appl. N 16/201236 : Filed 27.11.2018 : Pub. 29.12.2020 : / Gunnar Gudnason, Rasmus Glarborg Jensen, Jess Christensen, Kare Tais Christensen ; Assignee Oticon As ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10879792/en?oq=US10879792.html (дата обращения: ДД.ММ.ГГГГ).