Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4748743 | Utility knife with improved blade locking feature | Martin L. Anderson | 1988-06-07 |
| D294856 | Elevated water tank | — | 1988-03-22 |
| D293360 | Elevated water tank | — | 1987-12-22 |
| 4683657 | Cutting blade for carpet removing machines | Martin L. Anderson | 1987-08-04 |
| 4529238 | Carpet handling tool | Dwain C. Bell, Martin L. Anderson | 1985-07-16 |
| 4446593 | Carpet steaming tool | Dwain C. Bell, Martin L. Anderson | 1984-05-08 |
| 4332371 | Carpet removing apparatus and method | Dwain C. Bell | 1982-06-01 |
| 4295777 | Roll lifting dollies | Dwain C. Bell | 1981-10-20 |
| 4241930 | Two-wheeled dolly | Dwain C. Bell | 1980-12-30 |
| D254049 | Arcuate cutting tool | — | 1980-01-29 |