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Hacker In Harrison 🐗 on X: "I've got an old Hewlett-Packard HP-28S that needs a battery cover. I've replaced the calculator with a HP-35S but I'd like to get this old one
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HP 28S - A solution for battery and broken sliding door
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HP-28S Battery Cover
Anyone have a photo of a broken HP28S battery cover? - Printable Version
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Hacker In Harrison 🐗 on X: "I've got an old Hewlett-Packard HP-28S that needs a battery cover. I've replaced the calculator with a HP-35S but I'd like to get this old one
HP-28S Battery Compartment Door – TeaWea – Calculators
NOS/NIP Hewlett-Packard HP-28C from 1987! : r/calculators
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NOS/NIP Hewlett-Packard HP-28C from 1987! : r/calculators
HP-28S Battery Compartment Door – TeaWea – Calculators
HP 28S LiPo Battery | Hackaday.io
HP 28S - A solution for battery and broken sliding door
HP-28S Battery Compartment Door – TeaWea – Calculators
HP-28S Battery Compartment Door – TeaWea – Calculators
HP-28S Battery Compartment Door – TeaWea – Calculators
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National Museum of American History
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