Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395213 | Noise suppressing block molding machinery | William F. Wallis | 1983-07-26 |
| 4235580 | Noise suppression structure for block making machinery | William F. Wallis | 1980-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395213 | Noise suppressing block molding machinery | William F. Wallis | 1983-07-26 |
| 4235580 | Noise suppression structure for block making machinery | William F. Wallis | 1980-11-25 |