1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 2)
  4. 8: Miscellaneous manufactured articles
  5. 87: Professional, scientific & controling instruments
  6. 874: Measuring, checking, analysing instruments
  7. 8742: Drawing, marking-out, disc calculators and the like
  8. 87421: Drawing, marking-out, disc calculators and the like

87421: Drawing, marking-out, disc calculators and the like

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