Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884405 | Valve arrangement for a piston charger driven by exhaust gas pulses | — | 1989-12-05 |
| 4817386 | Method for the supply of combustion air to the combustion chamber of an internal combustion engine | — | 1989-04-04 |
| 4797070 | Displacement compressor for supercharging of combustion engines | — | 1989-01-10 |