| Class | Subclass | Patent |
| 91 | 376R | 07921763 |
| 513 | 07921764 | |
| 92 | 107 | 07921765 |
| 95 | 96 | 07922789 |
| 117 | 07922790 | |
| 141 | 07922791 | |
| 232 | 07922792 | |
| 249 | 07922793 | |
| 271 | 07922794 | |
| 96 | 4 | 07922795 |
| 108 | 07922796 | |
| 147 | 07922797 | |
| 229 | 07922798 | |
| 99 | 295 | 07921766 |
| 328 | 07921767 | |
| 419 | 07921768 | |
| 495 | 07921769 |