| 60 / | HD | POWER PLANTS |
| 625 | DF | INTERNAL COMBUSTION ENGINE WITH STRUCTURE ROTATING OR STARTING IT BY PRESSURE FLUID {2} |
| 626 | | .~ Having means for compressing, generating or storing pressure fluid {3} |
| 627 | DF | .~.~> Having condition responsive control of means |
| 628 | DF | .~.~> Storage vessel charged by internal combustion engine acting as a pump |
| 629 | DF | .~.~> Pressure fluid motor convertible to pressure fluid pump |