1. Sources
  2. OECD International Trade
  3. International Trade By Commodity Statistics (SITC Rev. 3)
  4. 7: Machinery and transport equipment
  5. 77: Electrical machinery, apparatus and appliances, n.e.s.
  6. 774: Electro-diagnostic appa. for medical sciences, etc.
  7. 7742: X, alpha rays, etc., apparatus; examinat. tables, etc.
  8. 77421: Apparatus based on the use of x-rays

77421: Apparatus based on the use of x-rays

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