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Creation Date 

1. Before 1991  (26)
2. 1991 To 1999  (21)
3. 2000 To 2006  (33)
4. 2007 To 2014  (73)
5. After 2014  (161)
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Resource Type 

1. Patents  (310)
2. Articles  (3)
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Subject 

1. Production Of Cellulose  (305)
2. Paper-Making  (305)
3. Paper Not Otherwise Provided For  (201)
4. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (201)
5. Impregnating Or Coating Of Paper  (201)
6. Pulp Compositions  (201)
7. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (201)
8. Regeneration Of Pulping Liquors  (86)
9. Apparatus Therefor  (86)
10. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (86)
11. Methods Of Producing Paper Thereon  (74)
12. Paper-Making Machines  (74)
13. Chemistry  (57)
14. Metallurgy  (56)
15. Treatment Of The Materials Before Passing To The Paper-Makingmachine  (31)
16. Fibrous Raw Materials Or Their Mechanical Treatment  (31)
17. Treatment Of Water, Waste Water, Sewage, Or Sludge  (26)
18. Transporting  (22)
19. Performing Operations  (22)
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Databases 

1. esp@cenet  (310)
2. ProQuest Central  (2)
3. Springer Nature OA/Free Journals  (1)
4. UCL Discovery  (1)
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Language 

1. English  (277)
2. Chinese  (197)
3. French  (5)
4. Norwegian  (5)
5. Swedish  (4)
6. Finnish  (4)
7. Russian  (3)
8. Danish  (3)
9. German  (3)
10. Spanish  (1)
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Journal Title 

1. Journal Of Polymers And The Environment  (1)
2. Journal Of The Early Republic  (1)
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