| Class | Subclass | Patent |
| 2 | 2.15 | 07921467 |
| 9 | 07921468 | |
| 48 | 07921469 | |
| 59 | 07921470 | |
| 98 | 07921471 | |
| 108 | 07921472 | |
| 171.3 | 07921473 | |
| 338 | 07921474 | |
| 410 | 07921475 | |
| 448 | 07921476 | |
| 4 | 213 | 07921477 |
| 300.3 | 07921478 | |
| 309 | 07921479 | |
| 313 | 07921480 | |
| 326 | 07921481 | |
| 681 | 07921482 | |
| 5 | 9.1 | 07921483 |
| 83.1 | 07921484 | |
| 07921485 | ||
| 87.1 | 07921486 | |
| 164.1 | 07921487 | |
| 421 | 07921488 | |
| 600 | 07921489 | |
| 621 | 07921490 | |
| 710 | 07921491 | |
| 8 | 116.1 | 07922776 |
| 158 | 07921492 | |
| 07921493 | ||
| 159 | 07921494 | |
| 405 | 07922777 | |
| 471 | 07922778 | |
| 522 | 07922779 |