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Pat. 10911002 United States, Int. Cl.22 H03G 3/20, H02M 7/04, H03F 1/02, H03F 1/32, H03F 3/189, H03F 3/21, H03G 3/30, H03F 3/19. Multistage power amplifier with bias compensating function : Appl. N 16/373830 : Filed 03.04.2019 : Pub. 02.02.2021 : / Kyu Jin Choi ; Assignee Samsung Electro Mechanics Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10911002/en?oq=US10911002.html (дата обращения: ДД.ММ.ГГГГ).