Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D285220 | Display sign support having detachable component parts and slideable ground anchors | John R. Cooper | 1986-08-19 |
| 4541119 | Portable broadcast band information transmitting system | John R. Cooper | 1985-09-10 |