0
None, they were used as early as the 3rd century B.C.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What African American invented the first elevator?
None. The elevator was invented by the Romans a couple of hundred years before Christ. An African American named Alexander Miles did however add to the elevator patented by Elisha Otis in 1861. He made improvements to the doors and shaft, and had them patented in 1887.
Which African American invented the helicopter?
No African American invented the helicopter. The first practical helicopter was invented by Igor Sikorski, a Russian American.
Was the ironing board invented by an African American woman?
no but it was improved by African American Sarah Boone
Who invented the elevator device?
Elisha Otis invented the elevator in 1854.
Who invented the elevator brakes?
While Elisha (Eli) Otis invented the elevator brakes, the elevator was invented by someone else.
What African American invented bottle caps?
William Painter invented the bottle cap, his patent was granted in 1892. He was American but not African-American.
Who invented the Electric Multiple Unit Technology and the Electric Elevator?
American engineer Frank J. Sprague, was an early proponent EMUs in 1897. Werner von Siemens invented the Electric Elevator in 1880
Who invented the elevator in 1859?
gidel moreno was the first lady who invented the elevator
Who was the person that invented ice cream?
Augustus Jackson, an African American (yeah I know an African american?)
Who was the 19 year old African American falsely arrested for assaulting a elevator operator?
Dick Rowland
What African American invented microwave?
Percy LeBaron Spencer - he was an American
What year was the elevator brake invented?
The elevator brake was invented in 1852 by Elisha Graves
