Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997284 | Concrete and mortar distribution process and apparatus | Robert C. Tousignant, James W. Tousignant | 1991-03-05 |
| 4953752 | Concrete and mortar distribution process and apparatus | Robert C. Tousignant, James W. Tousignant | 1990-09-04 |