Description
HP-28S advanced scientific programmable calculator
Tested; works.
The HP-28S is a graphing RPL (RPN) calculator produced by Hewlett Packard in 1988. It features a flip-open “clamshell” case. The LCD screen is 137×32 dot matrix.
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Hewlett-Packard HP-28S advanced scientific programmable calculator
€ 80,00
