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Creation Date 

1. Before 1986  (1)
2. 1986 To 1986  (5)
3. 1987 To 1988  (1)
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5. After 1990  (3)
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Subject 

1. Production Of Cellulose  (12)
2. Preparation Thereof Not Covered By Subclasses D21c Or D21d  (12)
3. Paper-Making  (12)
4. Treatment Of Finished Paper Not Covered By Class B31 Or Subclass D21g  (12)
5. Textiles  (12)
6. Impregnating Or Coating Of Paper  (12)
7. Paper Not Otherwise Provided For  (12)
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Language 

1. English  (6)
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