Refine My Results

Creation Date 

1. Before 1982  (1,046)
2. 1982 To 1990  (1,981)
3. 1991 To 1999  (2,274)
4. 2000 To 2009  (1,053)
5. After 2009  (127)
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Subject 

1. Paper Not Otherwise Provided For  (2,503)
2. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (2,503)
3. Impregnating Or Coating Of Paper  (2,503)
4. Pulp Compositions  (2,503)
5. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (2,503)
6. Apparatus Therefor  (2,041)
7. Regeneration Of Pulping Liquors  (2,026)
8. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (2,026)
9. Transporting  (1,908)
10. Performing Operations  (1,908)
11. Chemistry  (1,727)
12. Metallurgy  (1,727)
13. Methods Of Producing Paper Thereon  (1,527)
14. Paper-Making Machines  (1,527)
15. Compositions Based Thereon  (858)
16. Their Preparation Or Chemical Working-Up  (858)
17. Organic Macromolecular Compounds  (858)
18. More options 

Language 

1. French  (3)
2. English  (3)
3. More options