| Class | Subclass | Patent |
| 623 | 1.13 | 07914567 |
| 07914568 | ||
| 1.18 | 07914569 | |
| 1.22 | 07914570 | |
| 1.34 | 07914571 | |
| 1.35 | 07914572 | |
| 1.42 | 07914573 | |
| 1.44 | 07914574 | |
| 2.14 | 07914575 | |
| 2.36 | 07914576 | |
| 2.37 | 07914577 | |
| 8 | 07914578 | |
| 13.2 | 07914579 | |
| 16.11 | 07914580 | |
| 17.16 | 07914581 | |
| 20.16 | 07914582 | |
| 21.14 | 07914583 | |
| 22.42 | 07914584 | |
| 23.26 | 07914585 | |
| 24 | 07914586 | |
| 62 | 07914587 |