Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760534 | Spark plug having ring shaped auxiliary electrode with thickened peripheral edges | Jan Bednar | 1998-06-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5760534 | Spark plug having ring shaped auxiliary electrode with thickened peripheral edges | Jan Bednar | 1998-06-02 |