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Information × Registration Number 2115U002297, Article popup.category Thesis Title popup.author popup.publication 01-01-2015 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/40483 popup.publisher Sumy State University Description A smoke detector is made to alert people when the fire begins. It has already saved millions of lives and it is still rather promising for the future. popup.nrat_date 2025-05-12 Close