| Class | Subclass | Patent |
| 270 | 45 | 07922160 |
| 07922161 | ||
| 07922162 | ||
| 58.12 | 07922163 | |
| 07922164 | ||
| 58.17 | 07922165 | |
| 271 | 3.01 | 07922166 |
| 4.01 | 07922167 | |
| 10.02 | 07922168 | |
| 121 | 07922169 | |
| 162 | 07922170 | |
| 171 | 07922171 | |
| 213 | 07922172 | |
| 272 | 07922173 | |
| 276 | 07922174 | |
| 273 | 138.1 | 07922175 |
| 07922176 | ||
| 139 | 07922177 | |
| 07922178 | ||
| 277 | 615 | 07922179 |
| 279 | 143 | 07922180 |