Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884900 | Fracture splitting of light metal components | Jean-Pierre Pirault, Mervyn Rowbotham | 1989-12-05 |
DB
David A. Biggs
Overall (1989): #123,927 of 140,708Top 90%
1
Patents 1989