Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339088 | Method and apparatus for measurement of direction | James Dudley | 1994-08-16 |
| 4441809 | Method and apparatus for determining position | James Dudley | 1984-04-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5339088 | Method and apparatus for measurement of direction | James Dudley | 1994-08-16 |
| 4441809 | Method and apparatus for determining position | James Dudley | 1984-04-10 |