Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840649 | Adjustable buttress for use in an electrostatic precipitator | John A. Jonelis | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840649 | Adjustable buttress for use in an electrostatic precipitator | John A. Jonelis | 1989-06-20 |