Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D352049 | Optical focuser | James D. Burr | 1994-11-01 |
| 5303090 | Apparatus for adjusting the position of a drawtube in an optical instrument | James D. Burr | 1994-04-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D352049 | Optical focuser | James D. Burr | 1994-11-01 |
| 5303090 | Apparatus for adjusting the position of a drawtube in an optical instrument | James D. Burr | 1994-04-12 |