Portrait of inventor Martin Wiberg and that of him constructed the calculator 1875 Stock Photo - Alamy
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shorts Incredible Math Prodigy Who Invented Calculator - Blaise Pascal || Prodigy Shorts - YouTube
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Inventor of the calculator dies at the age of 86
Brilliant' inventor who co-created first handheld calculator in 1967 dies | Metro News
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Brilliant' man who was an inventor of the calculator dies | BelfastTelegraph.co.uk
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A Brief History of the Calculator I Oxford Open Learning
Jerry Merryman, Inventor of the Pocket Calculator, Dies at 86
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The History Of The Calculator: When was the Calculator First Invented?
:max_bytes(150000):strip_icc()/blaise-pascal-calculating-machine-515214884-5c81fc9b46e0fb0001431954.jpg "Biography of Blaise Pascal, Inventor of the Calculator")
Biography of Blaise Pascal, Inventor of the Calculator
The First Mechanical Calculator and the Computer Revolution of the 160 – mimicEducationalRobots
