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HP Forums / Not HP Calculators / Not remotely HP Calculators v / Mechanical Pencil Calculator?

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Mechanical Pencil Calculator?
02-08-2022, 08:55 PM
Post: #1
ndzied1 Offline
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Mechanical Pencil Calculator?
I saw this image in a video where the user was looking through the November 1957 issue of Popular Mechanics Magazine. Has anyone seen such a thing?

   
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Messages In This Thread
Mechanical Pencil Calculator? - ndzied1 - 02-08-2022 08:55 PM
RE: Mechanical Pencil Calculator? - Ren - 02-08-2022, 09:08 PM
RE: Mechanical Pencil Calculator? - KeithB - 02-14-2022, 03:22 PM



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