Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4911551 | Apparatus for determining the real or virtual distance of a light source from a measurement plane | — | 1990-03-27 |
| 4548504 | Device for determining the real or the virtual distance of a source of light from a measuring plane | — | 1985-10-22 |
| 4375921 | Dimension measuring apparatus | — | 1983-03-08 |