Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612586 | Spark plug for internal combustion engines | Walter Benedikt, Dittmar Klett, Dietrich Trachte, Hermann Kersting, Roland Mueller | 1997-03-18 |
JF
Jochen Fischer
Overall (1997): #129,399 of 185,788Top 70%
1
Patents 1997