Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805883 | Box spring assembly with a grid structure formed of both basic and spring wire | — | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805883 | Box spring assembly with a grid structure formed of both basic and spring wire | — | 1989-02-21 |