Canon AI Note IN-3000 and IN-5000 question

[Stan Sieler]

Hi,

Does anyone know when the Canon AI Note  IN-5000 was released?

The nearly identical Canon AI Note IN-3000 came out in 1989, and I wonder
(without proof) if it (3000) might have a been a slightly later,
cost-reduced version of the 5000.

Google searching came up empty for the IN-5000,
and all hits I got for the IN-3000 were copies of an old ebay-like page
offering one some years ago.

It's a Newton/Magic like calculator (and more) that recognized handwritten
equations (and more).

thanks,

Stan