Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833659 | Sonar apparatus | Frederick G. Geil, Henry M. Gruen, Howard S. Newman, Thomas J. Ratz, Linwood M. Rowe, Jr. | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833659 | Sonar apparatus | Frederick G. Geil, Henry M. Gruen, Howard S. Newman, Thomas J. Ratz, Linwood M. Rowe, Jr. | 1989-05-23 |