Spirograph a hypocycloid. 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.
Ham Fisher well known in cartooning circles, and it became personal and vitriolic as Capp's strip eclipsed "Joe Palooka" in popularity. In the 1930s, to replace Capp, Fisher hired away Capp's top assistant, Moe Leff, along with Phil Boyle and a letterer. All three continued to work for Fisher for two decades. Fisher, Leff and Boyle all collaborated on the art, with Leff drawing the figures and Fisher doing the heads. Leff also contributed to scripting the strip. After Fisher underwent plastic surgery, Capp once included a racehorse in "L'il Abner" named Ham's Nose Bob. Traveling in the same social circles, the