Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676197 | Mounting for drive mechanism of heat exchanger screen cleaning wand | David Henry Diebold, Robert J. Johnston, John Lewis Rukgaber, Larry Workman | 1997-10-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5676197 | Mounting for drive mechanism of heat exchanger screen cleaning wand | David Henry Diebold, Robert J. Johnston, John Lewis Rukgaber, Larry Workman | 1997-10-14 |