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Hewlett-Packard HP 45 Electronic Calculator, 1973 | Science Museum Group Collection
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
HP-45
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File:Vintage Hewlett-Packard Model HP-45 Advanced Scientific Pocket Calculator, HP's Third Handheld Electronic Calculator, Introduced in 1973 and Discontinued in 1976 (24898239118).jpg - Wikimedia Commons
Hewlett-Packard HP-45 Handheld Electronic Calculator | National Museum of American History
File:Hewlett-Packard HP-45 side view.jpg - Wikimedia Commons
DigiBarn Calculators: HP 45 in original case
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The HP 45: A "Shift" in Technology - Hewlett-Packard History
Vintage Hewlett Packard 45 Scientific Calculator for Collectors - Calculators - BMI Surplus
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Hewlett Packard HP45 calculator w/ Power Adapter **Cable Issue** No Battery | eBay
HP 45
The early history of HP calculators | HPE
Hewlett-Packard HP-45 Handheld Electronic Calculator, Case | National Museum of American History
HP-45
HP-45 scientific calculator - Apps on Google Play
Hewlett Packard HP 45 calculator | eBay
HP 45 Scientific Calculator - YouTube
HP-45
