| Class | Date Established |
|---|---|
| 292 | 1919 |
| 293 | 1918 |
| 294 | 1919 |
| 295 | 1918 |
| 296 | 1919 |
| 297 | 1961 |
| 298 | 1919 |
| 299 | 1964 |
| 300 | 1921 |
| 301 | 1920 |
| 303 | 1920 |
| 305 | 1959 |
| 307 | 1952 |
| 310 | 1952 |
| 312 | 1927 |
| 313 | 1950 |
| 314 | 1941 |
| 315 | 1943 |
| 318 | 1947 |
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