Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588976 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Carl B. Kieranen, Jeffrey Torvinen, Charles Hallstrom | 2003-07-08 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6588976 | Concrete placing and screeding apparatus and method | Philip J. Quenzi, Carl B. Kieranen, Jeffrey Torvinen, Charles Hallstrom | 2003-07-08 |