Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694649 | Adjustable baseball batter's and catcher's helmet with mask | Dennis V. Hefling, Randy D. Black | 1997-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5694649 | Adjustable baseball batter's and catcher's helmet with mask | Dennis V. Hefling, Randy D. Black | 1997-12-09 |