Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869479 | Spring for floors and the like | Richard C. Colonel, DeVere V. Lindh | 1989-09-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869479 | Spring for floors and the like | Richard C. Colonel, DeVere V. Lindh | 1989-09-26 |