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OECD International Trade
International Trade By Commodity Statistics (SITC Rev. 3)
7: Machinery and transport equipment
77: Electrical machinery, apparatus and appliances, n.e.s.
774: Electro-diagnostic appa. for medical sciences, etc.
7742: X, alpha rays, etc., apparatus; examinat. tables, etc.
7742: X, alpha rays, etc., apparatus; examinat. tables, etc.
77421: Apparatus based on the use of x-rays
77422: Appar. based on the use of alpha, beta, gamma radia.
77423: X-ray tubes
77429: Other apparatus for examination or treatment
7742: X, alpha rays, etc., apparatus; examinat. tables, etc.
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