Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932985 | Rapper construction | John A. Jonelis, David L. Parta, Glen M. Peterson | 1990-06-12 |
| 4516992 | Apparatus and method for straightening electrostatic precipitator collector plates | — | 1985-05-14 |