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1. Hygiene  (23)
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3. Medical Or Veterinary Science  (23)
4. Measuring  (16)
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7. Preparations For Medical, Dental, Or Toilet Purposes  (12)
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11. Specific Therapeutic Activity Of Chemical Compounds Ormedicinal Preparations  (10)
12. Measuring Magnetic Variables  (9)
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14. Investigating Or Analysing Materials By Determining Theirchemical Or Physical Properties  (7)
15. Calculating  (2)
16. Devices For Introducing Media Into, Or Onto, The Body  (2)
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19. Devices For Producing Or Ending Sleep Or Stupor  (2)
20. Devices For Transducing Body Media Or For Taking Media Fromthe Body  (2)
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