'In 1854 he demonstrated his elevator safety device by ascending in an elevator & having the rope cut'
(Elijah) Otis
19th CENTURY INVENTORS: In 1854 he demonstrated his elevator safety device by ascending in an elevator & having the rope cut
In 1854 he demonstrated his elevator safety device by ascending in an elevator & having the rope cut
In 1854 he demonstrated his elevator safety device by ascending in an elevator & having the rope cut
19th CENTURY INVENTORS
Elijah Otis
19th CENTURY INVENTORS