Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668406 | Spring units | Peter Douglas Spinks | 2003-12-30 |
| 6622384 | Method and apparatus for forming spring units | Peter Douglas Spinks | 2003-09-23 |
| 6523812 | Spring units | Peter Douglas Spinks | 2003-02-25 |