Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775919 | Radially relieved locating pin | Thomas Liebig | 2004-08-17 |
| 5100097 | Drafting caddy for use with track type drafting machines on inclined drafting surfaces | Thomas Liebig | 1992-03-31 |