Refine My Results

Creation Date 

1. Before 1920  (3,831)
2. 1920 To 1949  (15,106)
3. 1950 To 1952  (5,045)
4. 1953 To 1956  (2,865)
5. After 1956  (2,688)
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New Records 

1. New From Last Month  (6)
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Subject 

1. Paper Not Otherwise Provided For  (8,018)
2. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (8,018)
3. Impregnating Or Coating Of Paper  (8,018)
4. Pulp Compositions  (8,018)
5. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (8,018)
6. Methods Of Producing Paper Thereon  (7,267)
7. Paper-Making Machines  (7,267)
8. Apparatus Therefor  (6,446)
9. Regeneration Of Pulping Liquors  (6,375)
10. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (6,375)
11. Manufacture Of Articles From Cellulosic Fibrous Suspensions Orfrom Papier-Mache  (3,269)
12. Fibreboard  (3,269)
13. Treatment Of The Materials Before Passing To The Paper-Makingmachine  (2,770)
14. Transporting  (2,639)
15. Performing Operations  (2,639)
16. General Tagging Of Cross-Sectional Technologies Spanning Over Several Sections Of The Ipc  (2,449)
17. General Tagging Of New Technological Developments  (2,449)
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Language 

1. English  (18,184)
2. German  (4,823)
3. French  (4,310)
4. Finnish  (1,658)
5. Russian  (492)
6. Spanish  (63)
7. Danish  (26)
8. Swedish  (23)
9. Dutch  (20)
10. Italian  (7)
11. Estonian  (1)
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