DescriptionVintage Casio Biolator Pocket LED Calculator, Model H-801, Made in Japan, Circa 1975 (9273200144).jpg
From the Vintage-Technology.com Website: This is not much of a calculator with no percentages or memory and only seven digit negative numbers. The Biolator functions are fun but the day and “number of days” functions are probably more useful. Unfortunately it is not Y2K compliant, valid dates for the 1990s only as it is a two-digit year entry system. The original cover is soft black plastic, open top with half-moon cut-outs.
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