Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623208 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Jeffrey Torvinen, Charles Hallstrom, Mark A. Pietila | 2003-09-23 |
| 6588976 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Jeffrey Torvinen, Charles Hallstrom, Mark A. Pietila | 2003-07-08 |