| Symbol | Typ | Titel |
|---|---|---|
| B | SK | SECTION B — PERFORMING OPERATIONS; TRANSPORTING |
| B30 | KL | PRESSES |
| B30B | UKL | PRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J 3/00) [2] |