Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887770 | Electrostatic rotary atomizing liquid spray coating apparatus | Robert L. Wacker, Donald E. Shuster, Alan J. Knobbe, James C. Murphy | 1989-12-19 |
| 4824295 | Powder delivery system | — | 1989-04-25 |
| 4819879 | Particle spray gun | Alan J. Knobbe, Kenneth A. White, Gerald W. Crum | 1989-04-11 |