Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878261 | Sweeper with pivotally mounted dust bin | — | 1989-11-07 |
| 4864680 | Liquid extraction surface cleaning apparatus | Michael R. Blase, Gordon W. Goodrich | 1989-09-12 |
| 4854544 | Fluid flow control valve | Michael R. Blase, Gordon W. Goodrich | 1989-08-08 |
| 4847943 | Liquid extraction surface cleaning apparatus | Michael R. Blase, Gordon W. Goodrich | 1989-07-18 |
| 4827562 | Liquid extraction surface cleaning apparatus | Michael R. Blase, Gordon W. Goodrich | 1989-05-09 |
| 4823430 | Vacuum cleaner with brush lift-off | Robert A. Yonkers | 1989-04-25 |
| 4809393 | Electrical appliances including a cord lock | Gordon W. Goodrich | 1989-03-07 |
| 4800613 | Liquid extraction surface cleaning apparatus | Michael R. Blase, Gordon W. Goodrich | 1989-01-31 |