Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829163 | Crack detector for heated glass panel | Richard A. Rausch | 1989-05-09 |
DR
Donald O. Ruff
Overall (1989): #119,049 of 140,708Top 85%
1
Patents 1989