Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224271 | Leveling test apparatus and method for optical instrument | Horace B. Langford, Jr., deceased, Donna C. Langford | 1993-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5224271 | Leveling test apparatus and method for optical instrument | Horace B. Langford, Jr., deceased, Donna C. Langford | 1993-07-06 |