Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656770 | Method for testing a spark-ignited internal combustion engine | Karl-Heinz Dittmann | 1997-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656770 | Method for testing a spark-ignited internal combustion engine | Karl-Heinz Dittmann | 1997-08-12 |