Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289220 | Detachable close-up lens assembly for an adjustable focus lens camera incorporating a photoranging system | Nicholas M. Werthessen | 1994-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289220 | Detachable close-up lens assembly for an adjustable focus lens camera incorporating a photoranging system | Nicholas M. Werthessen | 1994-02-22 |