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1978
Hardware Description
The HP-31E was most basic scientific member of the 30 series. It was a replacement for the HP-21 at the remarkably low price of $60. (About one half the price of its predecessor and less than one sixth its grandfather!)
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Model Number:
31E -
Manufacturer:
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Hardware Type:
Office Equipment -
Manufacture Year:
1978 -
More Info:
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