[Google Translation about one of mine, sorry] so it gives :
Death of the inventor of the'' magic slate André Cassagnes (86 years).
It was the French inventor of Télécran (also called Magic Slate) drawing mythical game sold more than 100 million copies.
This ancestor of the tablet where you could draw lines by turning two large buttons perched above then become writable slate magic pen.
Mythical magic screen. Precursor object invented by André Cassagnes, son of a baker, and electrician training, that Apple will pay any royalties (or even a thank lettrer).
It erased the data on the screen simply by shaking the device.
Security model with a real working offline guaranteed.