1800s-1900s
he invented the hoover vacuum.
he invented it in o A.D
in 9000
April Hoover
George Harrison invented the First dam ever named Hoover Dam after his son John Hoover.
Awnswers1800s-1900s
John Hoover
hoover
Henry Cecil Booth
erna hoover invented the first computerized switching system for telephone call traffic.
William Hoover invented the vacuum cleaner in the early 20th century.
There is a game called Hooverball which uses a large heavy ball. I think Hoover's doctor invented it to give Hoover more exercise.