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 Fisher-Price Fisher-Price is an American company that produces educational toys for children and infants, headquartered in East Aurora, New York. Fisher-Price has been a subsidiary of Mattel since 1993. Founded in 1930 by Herman Fisher, Irving Price, Price's illustrator-artist wife Margaret Evans Price, and Helen Schelle, the name Fisher-Price was established by combining two of the three names. Fisher worked previously in manufacturing, selling and advertising games for a company in Churchville, New York. Price had retired from a major variety chain store, and Helen Schelle previously operated Penny Walker Toy Shop in Binghamton, New York. Fisher-Price’s fundamental toy-making principles