Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390387 | Lightweight self-propelled turf sweeper | Michel Dube | 1995-02-21 |
| 4382859 | Water conservation and waste water treatment system | Paul B. Strycharz, Ross G. Steiger, Douglas N. Johnston | 1983-05-10 |