Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187691 | Underwater signaling device and method | Donald Ammann | 1993-02-16 |
| 4624511 | Stabilizer leg interlock | — | 1986-11-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187691 | Underwater signaling device and method | Donald Ammann | 1993-02-16 |
| 4624511 | Stabilizer leg interlock | — | 1986-11-25 |