Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835946 | Article transport apparatus | Thomas S. Hartness | 1989-06-06 |
| 4833860 | Grid structure | — | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835946 | Article transport apparatus | Thomas S. Hartness | 1989-06-06 |
| 4833860 | Grid structure | — | 1989-05-30 |