Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697099 | Helmet with an alarm | Timothy J. Sopko, Vernon C. Lenz | 1997-12-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697099 | Helmet with an alarm | Timothy J. Sopko, Vernon C. Lenz | 1997-12-16 |