Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887905 | Assembly and method for monitoring the alignment of a workpiece | Richard Stark | 1989-12-19 |
| 4846575 | Device and method for monitoring alignment utilizing phase conjugation | — | 1989-07-11 |