Pickett N3 Slide Rule
The Pickett N3 is a classic duplex slide rule designed for engineering and scientific calculations, featuring logarithmic scales for multiplication, division, trigonometry, and logarithms. It falls under HTS 9017.20.4000 as a mathematical calculating instrument used for manual computations without electronic components. Primarily used by students and professionals before the advent of electronic calculators.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorporating analog dials for instrument measurement
Devices with combined mathematical and measuring functions may shift to heading 9023 for analog instruments.
If contains electronic processing capability
Any electronic components would classify it as a pocket-size calculating machine under Chapter 84/85.
If sold solely as parts for existing calculators
Individual scales or components without complete calculating function fall under parts/accessories heading.
Not sure which classification is right?
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Import Tips & Compliance
• Verify the instrument is purely mechanical/non-electronic to avoid reclassification under Chapter 85 calculating machines
• Include detailed scale descriptions and historical/educational use in commercial invoice to support classification
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