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older HP calculators
07-06-2017, 02:31 PM
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older HP calculators
I bought two calculators from an instructor. For sure, one is a 28c---it opens kind of like a book with a spine.

Does anyone know if there was ever another calculator that had such a "spine" as a connecting tool to hold two pieces together?

I'm trying hard to remember what the model name was for the other calculator I bought. By the way, this event goes back to 2001 which is why I'm so foggy about the situation.

Much thanks,
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Messages In This Thread
older HP calculators - Katy Brocksmith - 07-06-2017 02:31 PM
RE: older HP calculators - SlideRule - 07-06-2017, 02:43 PM
RE: older HP calculators - striegel - 07-07-2017, 12:31 AM

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