Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775872 | Surface-traversing vehicle | Ernest Appleton | 2004-08-17 |
| 6769321 | Conduit traversing vehicle | Ernest Appleton | 2004-08-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6775872 | Surface-traversing vehicle | Ernest Appleton | 2004-08-17 |
| 6769321 | Conduit traversing vehicle | Ernest Appleton | 2004-08-03 |