| 123 / | HD | INTERNAL-COMBUSTION ENGINES | 
| 434 | DF | CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29} | 
| 445 | DF | .~ Fuel injection system {5} | 
| 468 | DF | .~.~ Having a specific shape, material, or location of fuel line {1} | 
| 469 |  | .~.~.~ Specific fuel line mounting means |