Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4227165 | Correction of linear errors in position measuring transducers | William H. Clifford | 1980-10-07 |
| 4215938 | Method and apparatus for correcting the error of a position measuring interferometer | Vincent F. Foster, William H. Grace | 1980-08-05 |