Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866477 | Automatic lens selection for desired optical reduction ratio in a microfilm camera | Ensley E. Townsend | 1989-09-12 |
RB
Robert V. Barry
Overall (1989): #64,678 of 140,708Top 50%
1
Patents 1989