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Keuffel and Esser Log Log Duplex Decitrig 4081-5 20" Linear slide rule

Major collection: Science & Technology
Object type: slide rule
Maker: Keuffel & Esser Co.
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment

log log duplex decitrig with manual 4081-5

More information: Model 4081-5 Catalog Pages

Gift of Thomas A. Weil

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