Issued Patents All Time
Showing 1–2 of 2 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 |
| D364251 | Toilet bowl plunger | — | 1995-11-14 |