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Creation Date 

1. Before 1962  (17)
2. 1962 To 1964  (25)
3. 1965 To 1967  (38)
4. 1968 To 1971  (87)
5. After 1971  (102)
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Subject 

1. Textiles  (260)
2. Production Of Cellulose  (260)
3. Regeneration Of Pulping Liquors  (260)
4. Production Of Cellulose By Removing Non-Cellulose Substancesfrom Cellulose-Containing Materials  (260)
5. Paper-Making  (260)
6. Flexible Materials Not Otherwise Provided For  (20)
7. Treatment Of Textiles Or The Like  (20)
8. Laundering  (20)
9. Bleaching Leather Or Furs  (20)
10. Transporting  (19)
11. Performing Operations  (19)
12. Chemistry  (16)
13. Metallurgy  (16)
14. Physical Or Chemical Processes Or Apparatus In General  (14)
15. Paper Not Otherwise Provided For  (11)
16. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (11)
17. Impregnating Or Coating Of Paper  (11)
18. Separation  (11)
19. Pulp Compositions  (11)
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Language 

1. English  (220)
2. German  (28)
3. Spanish  (16)
4. French  (9)
5. Finnish  (5)
6. Swedish  (4)
7. Danish  (2)
8. Icelandic  (2)
9. Italian  (1)
10. Portuguese  (1)
11. Dutch  (1)
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