Keuffel & Esser Decilon Slide Rule
The K&E Decilon features decimal-aligned scales for high-precision scientific calculations, popular among physicists and surveyors. Falls under HTS 9017.20.4000 as a specialized mathematical calculating instrument. White celluloid on wood construction with smooth cursor mechanism.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If functions primarily as drafting/pantograph instrument
Larger devices for drawing/marking-out classify separately in 9017.20.10.
If paper/cardboard construction without rigid cursor
Cigarette paper-style flexible paper rules go to Chapter 48.
If modified with digital readout addition
Hybrid electro-mechanical calculators classify as parts of Chapter 84 machines.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Provide scale function charts; customs may test functionality to confirm calculating purpose
• Historical replicas must specify reproduction scales identical to originals
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