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🔍 YouTube Search Results for "the pocket adding machine"
Found 20 results
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Arithma Addiator and Instamatic by FEDTRO, Troncet-Style Mechanical Calculators
eagereyes – Robert Kosara
2.7K views
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The Kesling Pocket Adder, a.k.a. Kes-Add, a small adding device
Jaap Scherphuis
2.9K views
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