From Early Vacuums to Robotic Cleaners

When we think of the vacuum cleaner, we generally bring to mind names like Hoover, Bissell and Eureka. These are the major players in the cleaning industry, helping households and businesses clean up their act everywhere. The technology of these cleaning tools involves an air pump to... Read more at: http://www.infobarrel.com/From_Early_Vacuums_to_Robotic_Cleaners