Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082392 | Manhole cover lock with spring biased locking bars | Jim Houghton, Dick Launspach, Domenic Marchese | 1992-01-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082392 | Manhole cover lock with spring biased locking bars | Jim Houghton, Dick Launspach, Domenic Marchese | 1992-01-21 |