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fanaudical fanaudical is offline
Join Date: Aug 2010
Location: Sherwood, OR
Posts: 3,220
And I guess I'll just put these links here (just in case you've read everything at the Museum of HP Calculators website):

One piece of calculation hardware that has always fascinated me is the mechanical integrator. I've seen one once in person - fascinating mechanism:
Old 10-21-2020, 10:12 PM
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