Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8282088 | Parallel clamp and accessories therefor | John Janson, Guojue Yan, Steven A. Erbach | 2012-10-09 |
| 7798478 | Parallel clamp and accessories therefor | John Janson, Guojue Yan, Steven A. Erbach | 2010-09-21 |