Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395213 | Noise suppressing block molding machinery | Thomas W. Springs | 1983-07-26 |
| 4312242 | Mechanical vibrator assembly | — | 1982-01-26 |
| 4235580 | Noise suppression structure for block making machinery | Thomas W. Springs | 1980-11-25 |