| Class | Subclass | Patent |
| 160 | 177R | 07921897 |
| 311 | 07921898 | |
| 162 | 158 | 07922867 |
| 348 | 07922868 | |
| 358.4 | 07922869 | |
| 164 | 97 | 07921899 |
| 113 | 07921900 | |
| 132 | 07921901 | |
| 165 | 81 | 07921902 |
| 104.33 | 07921903 | |
| 150 | 07921904 | |
| 172 | 07921905 | |
| 287 | 07921906 | |
| 166 | 57 | 07921907 |
| 108 | 07921908 | |
| 250.02 | 07921909 | |
| 250.12 | 07921910 | |
| 278 | 07921911 | |
| 300 | 07921912 | |
| 302 | 07921913 | |
| 308.1 | 07921914 | |
| 334.4 | 07921915 | |
| 336 | 07921916 | |
| 339 | 07921917 | |
| 351 | 07921918 | |
| 366 | 07921919 | |
| 369 | 07921920 | |
| 373 | 07921921 | |
| 374 | 07921922 | |
| 379 | 07921923 | |
| 381 | 07921924 | |
| 384 | 07921925 | |
| 385 | 07921926 | |
| 169 | 16 | 07921927 |
| 37 | 07921928 | |
| 67 | 07921929 |