Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485224 | Traffic barrier apparatus with gate | Gerrit A. Dyke | 2002-11-26 |
| 6474904 | Traffic barrier with liquid filled modules | John W. Duckett, Owen S. Denman | 2002-11-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485224 | Traffic barrier apparatus with gate | Gerrit A. Dyke | 2002-11-26 |
| 6474904 | Traffic barrier with liquid filled modules | John W. Duckett, Owen S. Denman | 2002-11-05 |