Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478505 | Anti-rotational traffic channeling device | David C. Gertz | 2002-11-12 |
| 6430855 | Sign stand with flexible upper mast portion | David C. Gertz | 2002-08-13 |
| 6402422 | Laterally stable vertical panel system | David C. Gertz | 2002-06-11 |