HP-28C/S

HP 28S Advanced Scientific Calculator, Purchased new in 198…

Made in USA Vintage 1986 Hewlett-Packard HP 28C Advanced Scientific Calculator Works Perfectly, 電腦＆科技, 商務用科技產品- Carousell

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Hewlett Packard HP-28S Scientific Calculator with Owner & Reference Manual Works

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HP-28C/S

Calculus Hewlett Packard calcolatrice HP 28S / 28C manuale scientific calculator

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HP-28C/S

Vintage 1986 Hewlett Packard HP 28S Advanced Scientific Calculator