Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864680 | Liquid extraction surface cleaning apparatus | Henry J. Rosendall, Gordon W. Goodrich | 1989-09-12 |
| 4854544 | Fluid flow control valve | Henry J. Rosendall, Gordon W. Goodrich | 1989-08-08 |
| 4847943 | Liquid extraction surface cleaning apparatus | Henry J. Rosendall, Gordon W. Goodrich | 1989-07-18 |
| 4827562 | Liquid extraction surface cleaning apparatus | Gordon W. Goodrich, Henry J. Rosendall | 1989-05-09 |
| 4800613 | Liquid extraction surface cleaning apparatus | Henry J. Rosendall, Gordon W. Goodrich | 1989-01-31 |