Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4371152 | Box spring assembly with improved spring installation capability | John P. Kitchen | 1983-02-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4371152 | Box spring assembly with improved spring installation capability | John P. Kitchen | 1983-02-01 |