HP calculators
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HP calculators are various calculators manufactured by the Hewlett-Packard company over the years.
HP 48G
HP 29C
HP's first scientific calculator, HP-35
HP's first calculator with alpha-numeric display, HP-41C
HP 35s
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The HP 35s is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-P
Front view of the HP 35s
Internal view