Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881815 | Linear and angular displacement measuring interferometer | — | 1989-11-21 |
| 4859066 | Linear and angular displacement measuring interferometer | — | 1989-08-22 |
| 4807997 | Angular displacement measuring interferometer | — | 1989-02-28 |
| 4802764 | Differential plane mirror interferometer having beamsplitter/beam folder assembly | Peter S. Young | 1989-02-07 |
| 4802765 | Differential plane mirror having beamsplitter/beam folder assembly | Peter S. Young | 1989-02-07 |