old slide rule
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
old slide rule |
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| navigate by keyword : above accuracy antique background business calculating calculator calculus close cosine cursor dirty division drawing education engineer engineering equipment flat horizontal instrument isolated logarithm logarithmic mathematical mathematics measurement mechanical multiplication number object obsolete old retro rule ruler scale science single slide sliding symbol tangent technology tool top transition trigonometry view white |
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| Top view of old slide rule isolated on white |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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