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slide rule |
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| navigate by keyword : antique background calculate calculation calculator calculus closeup cursor detail diagonal division drawing education engineering isolated learning logarithm logarithmic macro math mathematics mechanical multiplication multiply nobody numbers object obsolete old precision retro rule ruler scale science scientific sine single slide sliderule subtraction tangent technical technology tool trigonometric vintage white |
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| Close-up of 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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