"Denys Fisher (11 May 1918, Leeds, England – 17 September 2002, Barrow-in-Furness, England) was an English engineer who invented the spirograph toy.
He left Leeds University to join the family firm, Kingfisher (Lubrication) Ltd. In 1960 he left the firm to set up his own company, Denys Fisher Engineering, in Leeds. In 1961 the company won a contract with NATO to supply springs and precision component for its 20 mm cannon. Between 1962 and 1964 he developed various drawing machines from Meccano pieces, eventually producing a prototype Spirograph. Patented in 16 countries, it went on sale in Schofields department store in Leeds in 1965. A year later, Fisher licensed Spirograph to Kenner Products in the United States. In
1967 Spirograph was chosen as the UK Toy of the Year.
In 1970, Fisher sold his company, which, as Denys Fisher Toys, produced other toys and board games to Palitoy, which was subsequently bought by Hasbro. Through the 1980s & 1990's he continued to work with Hasbro in developing new toys and refining Spirograph." (Wikipedia, October 2012)