Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5000325 | Method and apparatus for the sorting of material | — | 1991-03-19 |
| 4880121 | Method and apparatus for the sorting of material | — | 1989-11-14 |
| 4728158 | Modular rack storage system and its method of assembly | Philip DeVries | 1988-03-01 |
| 4364475 | Microfiche tray | — | 1982-12-21 |