Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883176 | Paperboard video cassette housing | Christine S. Springman | 1989-11-28 |
| 4836439 | Microwave carton | — | 1989-06-06 |
| 4826072 | Microwave carton | — | 1989-05-02 |
| 4801774 | Center-supported microwave tray | — | 1989-01-31 |