Magic-Brain Calculator - Calculator - Computing History
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The MagicBrain Calculator was manufactured in 1955 by the Chadwick Company, this early calculator was operated using a stylus, and could perform addition, subtraction and multiplication calculation
Tracing the history of electronics through the Old Calculator Web Museum - Marketplace
Vintage Chadwick Magic Brain Calculator. Made in Japan. Mid century modern. This item is used and has visible scratches and signs of usage. I have
Vintage Chadwick Magic Brain Calculator. Made in Japan Mid century modern.
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Magic-Brain Calculator (2) - Calculator - Computing History
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Magic Brain Calculator with instructions. 1960's.
Put your brain to the test with this interesting number puzzle
The History Of The Calculator: When was the Calculator First Invented?
