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2. Their Preparation Or Chemical Working-Up  (42)
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15. Use Of Inorganic Or Non-Macromolecular Organic Substances Ascompounding Ingredients  (15)
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17. Preservation Of Bodies Of Humans Or Animals Or Plants Or Partsthereof  (15)
18. Biocides, E.G. As Disinfectants, As Pesticides, As Herbicides  (15)
19. Compositions Of Macromolecular Compounds  (13)
20. After-Treatment Not Covered By Subclasses C08b, C08c, C08f,c08g  (12)
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