Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880147 | Air blast generator | — | 1989-11-14 |
| 4875520 | Desiccant heat device | Donald F. Steele, Lawrence C. Hoagland, Christopher Kyricos | 1989-10-24 |
| 4848150 | Apparatus for measuring small changes in liquid level in a container | William E. Baird | 1989-07-18 |
| 4811601 | Method and apparatus for measuring the change in volume with change in temperature of liquid in tanks | — | 1989-03-14 |