Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819624 | Banded earplug | Howard S. Leight, Charles Leight | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819624 | Banded earplug | Howard S. Leight, Charles Leight | 1989-04-11 |