Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355823 | Apparatus and method for performing external surface work on ships' hulls | Richard A. Goldbach | 1994-10-18 |
| 5353729 | Apparatus and method for performing external surface work on ship hulls | Richard A. Goldbach, Frank E. McConnell, Joseph Henry Hoffman | 1994-10-11 |