On September 25, 1962, U.S. Patent No. 3,055,113, on a Tracing Device — what was commercialized as the Etch-A-Sketch:

In an odd coincidence, exactly eleven years later, on September 25, 1973, U.S. Patent No. 3,760,505 issued on a Tracing Device — covering an improved case:

How much simpler things would be if we could just shake our tablets and start over, like the good old Etch-A-Sketch.