Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807271 | Film sheet presence indicating mechanism for a photographic cassette | Roger G. Covington, Bruce R. Muller, John J. Niedospial, Jr. | 1989-02-21 |
EC
Evan P. Carmichael
Overall (1989): #115,821 of 140,708Top 85%
1
Patents 1989