Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887694 | High rise building fire escape/fire fighting and building maintenance system | — | 1989-12-19 |
| 4884609 | No-flat tire insert | — | 1989-12-05 |
| 4881568 | Irrigation chemical dispenser | — | 1989-11-21 |
| 4828072 | High rise building fire escape/fire fighting and building maintenance system | — | 1989-05-09 |