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$1.99 iPhone App Saved Oscars Film

by M. Amaar Tahir about 4:03 AM

Elevator safety paved way for skyscrapers

160 years ago, Eijah Otis invented a device that prevents elevators from plunging, allowing for modern-day skyscrapers.

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$1.99 iPhone App Saved Oscars Film

$1.99 iPhone App Saved Oscars Film

Reviewed by M. Amaar Tahir on 4:03 AM Rating: 5

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