Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413457 | Checkered wall or ceiling system | Albert H. Lahm | 1983-11-08 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4413457 | Checkered wall or ceiling system | Albert H. Lahm | 1983-11-08 |