Vintage Electronic portable calculator TI-1031 1981 with box cover and manual #1
$20
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Great condition although ugh box is aged.
Works please see all pictures please
Four-key independent memory. Memory plus, memory minus, memory recall, and memory clear functions can be performed without affecting calculations in progress.
• Easy-to-read liquid crystal display (LCD) shows 8 digits plus overflow, minus sign, battery condition and memory indication.
• APD™ automatic power down prevents accidental battery drain by turning the calculator off after 5 - 9 minutes of non-use.
• Percent key handles add-on and discount calculations automatically.
• Automatic constant in addition, subtraction, multiplication and division.
• Square root key.
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