Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822431 | Machine and method for preparing a concrete surface for coating | Charles W. Bricher | 1989-04-18 |
| 4586213 | Machine for preparing a concrete surface for coating | Charles W. Bricher | 1986-05-06 |
| 4550919 | Seal for a power fed roller | Dan West, John R. Hacker | 1985-11-05 |
| 4457036 | Debris collecting mechanism | Alfred D. Carlson, Donald J. Haub | 1984-07-03 |