| Country of Origin | United States |
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Check the listing for details. Keuffel Esser Slide Rule (4083-3)See Photos, Missing Small Bit, Fully Functional. Condition: Used, Made in United States. Listed at 19.91 USD. The item in the image is a Keuffel & Esser (K&E) 4083-3 Log Log Duplex Vector Slide Rule. This specific model was manufactured by the Keuffel & Esser Co. in the United States, primarily during the 1950s. Key details about the 4083-3 model include: Type: It is a duplex slide rule, meaning it has scales on both sides of the rule and the slide. Scales: It features a comprehensive set of scales, including Log Log (LL), trigonometric, and vector scales, designed for complex engineering and mathematical calculations. The image clearly shows scales such as L, LL1, DF, CF, CIF, CI, C, D, LL3, and LL2.
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