Spirograph Spirograph Spirograph is a geometric drawing toy that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. It was developed by British engineer Denys Fisher and first sold in 1965. The name has been a registered trademark of Hasbro Inc. since 1998 following purchase of the company that had acquired the Denys Fisher company. The Spirograph brand was relaunched worldwide with original product configurations in 2013 by Kahootz Toys. In 1827 English architect and engineer Peter Hubert Desvignes developed his "Speiragraph", a machine to create elaborate spiral drawings, intended to prevent bank note forgeries. The mathematician
Fisher-Price toys, which includes people and animal figures along with various play sets such as a house, farm, school, garage and vehicles. The figures, which originally were wooden peg-style characters, are now molded of plastic and have detailed features. In addition to Little People, some of the toys and toy brands that have remained popular for many years include Power Wheels, View-Master, Rescue Heroes, the Chatter Telephone, and the Rock-a-Stack. Other brands marketed under the Fisher-Price name over the years include Disney, Sesame Street, Dora the Explorer, and See 'n Say. Fisher-Price also designs and sells infant care products and has