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Pat. 11257633 United States, Int. Cl.22 H01H 1/00, G01R 31/327, G01R 31/40, G06F 3/0484, G06F 3/04842, H01H 9/54, H01H 50/04, H02H 1/00, H02H 3/08, H02M 3/156, H03K 3/313, H03K 17/60, H04L 67/1095, H04L 67/148, H04W 4/60, H01H 1/50, H01H 47/00, H01H 71/04, H02H 3/06, H02H 3/087, H02H 7/26, H02H 9/02, H02H 9/08, H03K 3/45. Power contact health assessor apparatus and method : Appl. N 17/181083 : Filed 22.02.2021 : Pub. 22.02.2022 : / Reinhold Henke, Robert Thorbus ; Assignee Arc Suppression Technologies LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11257633/en?oq=US11257633.html (дата обращения: ДД.ММ.ГГГГ).