Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200859 | Device for simulating marine craft noises | David John Evans, V | 1980-04-29 |
| 4200920 | Artificial underwater target | David John Evans, V | 1980-04-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200859 | Device for simulating marine craft noises | David John Evans, V | 1980-04-29 |
| 4200920 | Artificial underwater target | David John Evans, V | 1980-04-29 |