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Creation Date 

1. Before 1975  (2)
2. 1975 To 1978  (3)
3. 1979 To 1984  (2)
4. 1985 To 1987  (5)
5. After 1987  (2)
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Subject 

1. Transporting  (4)
2. Performing Operations  (4)
3. Chemistry  (4)
4. Metallurgy  (4)
5. Working-Up  (3)
6. Compositions Based Thereon  (3)
7. Their Preparation Or Chemical Working-Up  (3)
8. General Processes Of Compounding  (3)
9. Organic Macromolecular Compounds  (3)
10. Fibrous Raw Materials Or Their Mechanical Treatment  (3)
11. After-Treatment Not Covered By Subclasses C08b, C08c, C08f,c08g  (3)
12. Apparatus Specially Adapted For The Manufacture Of Carbonfilaments  (2)
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