Answer: Vacuum Cleaner. The early 20th century, non-electric Vacuum Cleaner was light, portable, and easy to operate. Learn more ››

Answer: Dog Collar. Many of the earlier Dog Collars dating from the 15th, 16th and 17th centuries were designed to protect the dog from wolves, bears and wild boar. Learn more ››

Answer: Resuscitation Device. The Lung Motor was manufactured in 1914. It was used as a method of resuscitation from gas poisoning, electric shock, drowning, asphyxia, and meomatorium collapse on operating tables. Learn more ››

Answer: Faradisation Massager. Made in Prague, the Elektrotor is a faradisation massager that stimulates muscles and nerves. Moving the double wheel over the body induces a electrical charge, in its time the therapy was called faradization. Learn more ››