close 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.
close old slide rule |
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| navigate by keyword : account accuracy antique asian background black calculating calculation calculator centimeter closeup count device education engineer equipment evaluation governing inches instrument isolated japanese length machine machinist math measure measurement measuring metric nobody number object old rule ruler school science scientific slide study teach technology tool training vintage white wood wooden |
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| Close up of old slide rule on black background |
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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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