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HP 48SX Calculator from 1990
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SOLD - Quick Vid of 1987 Working HP 42S RPN Scientific Calculator working
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Right to Repair Nightmare - HP 48SX
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HP 48GX and HP Prime - Solve an equation for x using solver tool
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Learning About the HP 48
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Old HP Calculator? Give it a New Battery!
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Memories: HP 48G Graphing Calculator 1994
