Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10285863 | Protective helmet having a cover plate knock out assembly | Edward L. Martin | 2019-05-14 |
| 10278867 | Helmet assemblies with flip-type welding visors | Ed Martin | 2019-05-07 |