Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4912865 | Multi-axis pivoting display sign | Steven James Ellsworth, Richard N. Philippi | 1990-04-03 |
| 4387520 | Sign holder | — | 1983-06-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4912865 | Multi-axis pivoting display sign | Steven James Ellsworth, Richard N. Philippi | 1990-04-03 |
| 4387520 | Sign holder | — | 1983-06-14 |