The invention:
The first portable domestic vacuum cleaner successfully
adapted to electricity, the original machine helped begin
the electrification of domestic appliances in the early twentieth
century.
The people behind the invention:
H. Cecil Booth (1871-1955), a British civil engineer
Melville R. Bissell (1843-1889), the inventor and marketer of the
Bissell carpet sweeper in 1876
William Henry Hoover (1849-1932), an American industrialist
James Murray Spangler (1848-1915), an American inventor