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Retro Ordenadores Orty: Casio Personal M1 Electronic Calculator (1977).
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Casio - Personal M-1 H-813B - - Vintage calculator - Casio Personal M1 H813B - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
Retro Ordenadores Orty: Casio Personal M1 Electronic Calculator (1977).