Imbali yoPhuhliso lwe-Elevator yaseTshayina Ngo-1854, kwi-World Expo e-Crystal Palace, eNew York, u-Eliza Graves Otis wabonisa ukuveliswa kwakhe okokuqala - ukuphakamisa ukhuseleko lokuqala kwimbali.Ukususela ngoko, iilifti ziye zasetyenziswa ngokubanzi kwihlabathi jikelele.Inkampani yeelevator, ebizwa ngegama lika-Otis,...
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