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Hewlett-Packard HP-45 Handheld Electronic Calculator | National Museum of American History
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HP-45
HP 45
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HP-45
HP-45 - Wikipedia
File:Vintage Hewlett-Packard Model HP-45 Advanced Scientific Pocket Calculator, HP's Third Handheld Electronic Calculator, Introduced in 1973 and Discontinued in 1976 (38772251491).jpg - Wikimedia Commons
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HP 45
