Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5768735 | Switch mechanism with mechanical lock out | Thomas R. Nyborg | 1998-06-23 |
| 5259164 | Wall constructed with a plurality of detachable boards connected with one another | — | 1993-11-09 |
| 5032155 | Wet/dry vacuum with automatic shutoff | Charles C. Wray, Jr. | 1991-07-16 |
| 4854005 | Automatic floor scrubbing machine with squeegee assembly and adjustable wheels | Dexter Lehman | 1989-08-08 |
| 4841595 | Vacuum pump-out system for wet/dry vacuum cleaner | — | 1989-06-27 |
| 4742652 | Air restraint device for burnishing machine | Bernard M. Cannan, Richard C. Mulhall, Fredrick B. Brown | 1988-05-10 |
| D277517 | Carpet and rug vacuum cleaner | Thomas E. Shearer, Dexter Lehman | 1985-02-05 |
| D261515 | Pressure spray carpet cleaner | Harold W. Schaefer | 1981-10-27 |
| D253891 | Casing for a vacuum cleaner | Harold W. Schaefer | 1980-01-08 |