Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4678892 | Combination cleaner safety circuit | Glen Lawrenson | 1987-07-07 |
| 4552162 | Electric combination cleaner | — | 1985-11-12 |
| 4436113 | Cleaning apparatus | — | 1984-03-13 |
| 4368757 | Cleaning apparatus and method | — | 1983-01-18 |
| 4217888 | Liquid solar heat collector | — | 1980-08-19 |
| 4217924 | Cleaning system having steam and water mixing ejector | — | 1980-08-19 |