CASIO PB-410

The first one

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Box
DeviceWatch RAM : RC-2


 Quick reference guide by Steven Fox - 2021
LibraryThe manual in french


 Credits : roger from silicium.org

 Download (french) - Scan : rogeroge
The manual in english
The reference data bank
MarketingIn France (List n°10) : june, 1985,
Links
 On silicium.org

 Pocket's Museum

 On underdev.co.uk