Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675420 | Intaglio engraving method and apparatus | Tony D. Beckett, David R. Seitz | 1997-10-07 |
| 5671063 | Error tolerant method and system for measuring features of engraved areas | Eric R. Auberry, David Flannery, David R. Seitz, Eric J. Serenius | 1997-09-23 |