Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5107168 | Spark plug with central electrode attachment member containing platinum or platinum alloy | Gruber Friedrich, Auer Reinhart | 1992-04-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5107168 | Spark plug with central electrode attachment member containing platinum or platinum alloy | Gruber Friedrich, Auer Reinhart | 1992-04-21 |