Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875643 | Starter arrangement for a helicopter | Hans Weiner, Klaus Hain, August Hofbauer, Juergen Hawener | 1989-10-24 |
| 4841926 | Multi-cylinder internal combustion engine with externally applied ignition and with turbocharger | Klaus Hain, Michael Beer | 1989-06-27 |