 Three different models of manual vacuum cleaners were sold by Sears, Roebuck & Co. between 1909 and 1917, the lightweight Quick and Easy, the valve-and-piston pump type Dust Killer, and the bellows-type Everybody's Vacuum Cleaner.Their main market was in rural areas, where as late as 1935, the year of passage of the Rural Electrification Act, 90% of American farms (out of 6.8 million, the peak) did not yet have electricity.In 1910 Herman G. Kotten of Englewood, N.J. patented (#975,435, Nov. 15, 1910) the Kotten Vacuum Cleaner, which required the operator to stand on a platform and "rock from side to side like a teeter-totter, activating two bellows."