Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4698534 | Quiet by-pass vacuum motor | Francis E. Smith, Robert L. Hyatt | 1987-10-06 |
| 4684835 | Motor cooling fan housing | Thomas Forsyth | 1987-08-04 |
| 4669952 | Quiet by-pass vacuum motor | Thomas Forsyth, Daniel F. McCauley | 1987-06-02 |
| 4621991 | Quiet by-pass vacuum motor | Francis E. Smith, Robert L. Hyatt | 1986-11-11 |