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Creation Date 

1. Before 1960  (15)
2. 1960 To 1962  (10)
3. 1963 To 1965  (9)
4. 1966 To 1969  (36)
5. After 1969  (23)
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Resource Type 

1. Patents  (91)
2. Articles  (1)
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Subject 

1. Textiles  (48)
2. Production Of Cellulose  (46)
3. Paper-Making  (46)
4. Transporting  (27)
5. Performing Operations  (27)
6. Chemistry  (25)
7. Metallurgy  (25)
8. Apparatus Therefor  (23)
9. Regeneration Of Pulping Liquors  (22)
10. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (22)
11. Paper Not Otherwise Provided For  (19)
12. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (19)
13. Impregnating Or Coating Of Paper  (19)
14. Pulp Compositions  (19)
15. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (19)
16. Compositions Based Thereon  (13)
17. Their Preparation Or Chemical Working-Up  (13)
18. Organic Macromolecular Compounds  (13)
19. Nailing Or Stapling Machines In General  (8)
20. Human Necessities  (8)
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Databases 

1. esp@cenet  (91)
2. DOAJ Directory of Open Access Journals  (1)
3. ProQuest Central  (1)
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