Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858269 | Wet/dry vac | Richard J. Ostroski, James E. Bigley, John L. Falk | 1989-08-22 |
| 4850076 | Brush vac | Richard J. Ostroski, James E. Bigley, John L. Falk | 1989-07-25 |
| 4800615 | Wet/dry vac | Richard J. Ostroski, James E. Bigley, John L. Falk | 1989-01-31 |