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1920 Comptometer Mechanical Calculator
18:48
YouTubeTech Tangents
1920 Comptometer Mechanical Calculator
The 100 year old Comptometer can't be that cool can it? Nope, it' even cooler! The first 500 people who click the link in the description will get 2 free months of Skillshare Premium: https://skl.sh/akbkuku3 I really, really, like this thing. It seems like I'm always saying this, but I didn't expect this thing's capabilities to be so deep. I ...
82.4K viewsFeb 18, 2020
Comptometer History
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Comptometer Arithmetic
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