Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583539 | Spark plug with center electrode and surrounding ground electrode | — | 2003-06-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583539 | Spark plug with center electrode and surrounding ground electrode | — | 2003-06-24 |