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Pat. 10569301 United States, Int. Cl.22 B06B 1/04, B64C 39/02, G01N 29/22, G01N 29/24, G01N 29/265, H02M 1/00, H02M 1/08, H02M 3/335, H02M 7/5387. Power supply for electromagnetic acoustic transducer (EMAT) sensors : Appl. N 15/631029 : Filed 23.06.2017 : Pub. 25.02.2020 : / Qin Lei, Junjun Xin ; Assignee Ulc Robotics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10569301/en?oq=US10569301.html (дата обращения: ДД.ММ.ГГГГ).