| Class | Subclass | Patent |
| 123 | 41.12 | 07921816 |
| 52.6 | 07921817 | |
| 90.12 | 07921818 | |
| 90.16 | 07921819 | |
| 90.17 | 07921820 | |
| 90.44 | 07921821 | |
| 90.52 | 07921822 | |
| 90.55 | 07921823 | |
| 179.1 | 07921824 | |
| 192.2 | 07921825 | |
| 446 | 07921826 | |
| 458 | 07921827 | |
| 568.12 | 07921828 | |
| 07921829 | ||
| 568.17 | 07921830 | |
| 575 | 07921831 | |
| 674 | 07921832 | |
| 685 | 07921833 | |
| 124 | 51.1 | 07921834 |
| 07921835 | ||
| 07921836 | ||
| 71 | 07921837 | |
| 07921838 | ||
| 73 | 07921839 | |
| 07921840 | ||
| 126 | 21A | 07921841 |
| 25R | 07921842 | |
| 623 | 07921843 | |
| 128 | 200.18 | 07921844 |
| 204.18 | 07921845 | |
| 205.24 | 07921846 | |
| 207.15 | 07921847 | |
| 830 | 07921848 | |
| 844 | 07921849 | |
| 848 | 07921850 | |
| 889 | 07921851 | |
| 898 | 07921852 | |
| 07921853 | ||
| 07921854 | ||
| 07921855 |