Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479996 | Forgery-resistant film and method of using same | Manfred Unger | 1984-10-30 |
HF
Helmut Sch/a/ fer
Overall (All Time): #4,043,372 of 4,157,543Top 100%
1
Patents All Time