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Creation Date 

1. Before 2012  (1)
2. 2012 To 2012  (4)
3. 2013 To 2013  (4)
4. 2014 To 2015  (3)
5. After 2015  (3)
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Subject 

1. Textiles  (12)
2. Paper Not Otherwise Provided For  (12)
3. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (12)
4. Impregnating Or Coating Of Paper  (12)
5. Production Of Cellulose  (12)
6. Pulp Compositions  (12)
7. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (12)
8. Paper-Making  (12)
9. Chemistry  (7)
10. Metallurgy  (7)
11. Transporting  (6)
12. Performing Operations  (6)
13. Nailing Or Stapling Machines In General  (5)
14. Human Necessities  (5)
15. Working Or Preserving Wood Or Similar Material  (5)
16. Fibrous Raw Materials Or Their Mechanical Treatment  (5)
17. Regeneration Of Pulping Liquors  (4)
18. Apparatus Therefor  (4)
19. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (4)
20. Coffee Mills  (3)
21. More options