Arthur Granjean

Arthur Granjean did not invent the Etch-A-Sketch. He was an accountant for the plastics company MAI, who merely filed the patent application in 1959. The concept was invented by André Cassagnes, an electrician at Lincrusta Company, in 1957. MAI (specifically, MAI president Paul Chaze) felt that they should own the patent on the device, since they did all the development work to turn Cassagnes' idea into a marketable product.

Arthur Grandjean was not an inventor, but he submitted the patent on the toy tracing device called the Etch A Sketch® which was invented by Andre Cassagnes in the early 1950s and marketed as L'Ecran Magique (Magic Screen) and later the Telecrans in Europe.

Arthur's full name is Arthur Timothy Read.