Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4501519 | Threading die couple | — | 1985-02-26 |
| 4372631 | Foldable drafting table with drawers | — | 1983-02-08 |
| 4349931 | Threading die couple | — | 1982-09-21 |
| 4327560 | Earth-embedded, temperature-stabilized heat exchanger | Vivian L. Leon | 1982-05-04 |