Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812390 | Process and element for obtaining a photographic image | — | 1989-03-14 |
PG
Pier G. Giannesi
Overall (1989): #137,659 of 140,708Top 100%
1
Patents 1989