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Pat. 10862297 United States, Int. Cl.22 H02H 9/00, G01D 11/00, G08B 21/02, H02J 50/10, H02M 7/06, H04Q 9/02. Intrinsically safe sensor for process automation technology : Appl. N 16/362069 : Filed 22.03.2019 : Pub. 08.12.2020 : / Stefan Pilz, Jorg Uhle, Stefan Paul, Hendrik Zeun ; Assignee Endress and Hauser Conducta Gmbh and Co Kg ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10862297/en?oq=US10862297.html (дата обращения: ДД.ММ.ГГГГ).