Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6689003 | Limited articulation chain (inverted tooth or roller) created by “squaring” ends (top and/or bottom) of links/guides of chain | Mark M. Wigsten, George L. Markley | 2004-02-10 |