Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4730531 | Kettledrum | Barbara A. Allen | 1988-03-15 |
| 4674390 | Kettledrum | Barbara A. Allen | 1987-06-23 |
| 4635524 | Kettledrum | Barbara A. Allen | 1987-01-13 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4730531 | Kettledrum | Barbara A. Allen | 1988-03-15 |
| 4674390 | Kettledrum | Barbara A. Allen | 1987-06-23 |
| 4635524 | Kettledrum | Barbara A. Allen | 1987-01-13 |