Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884977 | Reinforced boot for spark plug cables | — | 1989-12-05 |
| 4824385 | Rigid sheath for a spark plug cable and its associated boot | — | 1989-04-25 |
| 4810198 | Reinforced boot for spark plug cables | — | 1989-03-07 |
| 4797115 | Angled boot for angled spark plug cable terminals | Alexander J. Pickelhaupt | 1989-01-10 |