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Creation Date 

1. Before 2006  (2)
2. 2006 To 2008  (4)
3. 2009 To 2011  (4)
4. 2012 To 2015  (3)
5. After 2015  (9)
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Subject 

1. Chemistry  (9)
2. Metallurgy  (9)
3. Paper Not Otherwise Provided For  (7)
4. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (7)
5. Impregnating Or Coating Of Paper  (7)
6. Pulp Compositions  (7)
7. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (7)
8. Manufacture Thereof  (7)
9. Fertilisers  (7)
10. Treatment Of The Materials Before Passing To The Paper-Makingmachine  (6)
11. Mixtures Of Fertilisers Covered Individually By Differentsubclasses Of Class C05  (6)
12. Fertilisers Characterised By Their Form  (6)
13. Beer  (3)
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Language 

1. English  (19)
2. Chinese  (14)
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