Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884301 | Combination chinstrap-napestrap assembly for helmet | — | 1989-12-05 |
| 4847920 | Dual-visor assembly for helmet | Richard James Long, Joseph J. Zaccone, James J. Petruzella | 1989-07-18 |