| 1/00 | Making nets by knotting of filamentary material |
| 1/02 | Making nets by knotting of filamentary material in machines |
| 1/04 | Making nets by knotting of filamentary material in machines using a single thread |
| 1/06 | Making nets by knotting of filamentary material in machines using a single thread and a series of threads |
| 1/08 | Making nets by knotting of filamentary material in machines using two series of threads |
| 3/00 | Making knotted carpets or tapestries |
| 3/02 | Making knotted carpets or tapestries by hand; Tools therefor |
| 3/04 | Making knotted carpets or tapestries in machines |
| 5/00 | Knotting not otherwise provided for |