Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887112 | Film cassette | John J. Niedospial, Jr., Jeffrey C. Robertson | 1989-12-12 |
| 4834306 | Film cassette | Jeffrey C. Robertson | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887112 | Film cassette | John J. Niedospial, Jr., Jeffrey C. Robertson | 1989-12-12 |
| 4834306 | Film cassette | Jeffrey C. Robertson | 1989-05-30 |