Refine My Results

Creation Date 

1. Before 1961  (4,973)
2. 1961 To 1976  (8,007)
3. 1977 To 1992  (13,451)
4. 1993 To 2009  (40,376)
5. After 2009  (23,253)
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New Records 

1. New From Last Week  (36)
2. New From Last Month  (924)
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Subject 

1. Paper Not Otherwise Provided For  (40,482)
2. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (40,482)
3. Impregnating Or Coating Of Paper  (40,482)
4. Pulp Compositions  (40,482)
5. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (40,482)
6. Methods Of Producing Paper Thereon  (28,068)
7. Paper-Making Machines  (28,068)
8. Transporting  (27,918)
9. Performing Operations  (27,918)
10. Chemistry  (20,626)
11. Metallurgy  (20,626)
12. Apparatus Therefor  (14,002)
13. Regeneration Of Pulping Liquors  (13,584)
14. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (13,584)
15. Compositions Based Thereon  (11,311)
16. Their Preparation Or Chemical Working-Up  (11,311)
17. Organic Macromolecular Compounds  (11,311)
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Language 

1. English  (52,503)
2. French  (45,078)
3. Swedish  (4)
4. Finnish  (4)
5. Korean  (1)
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