Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993838 | Dust monitor | Stewart W. Tresouthick | 1991-02-19 |
| D271434 | Bird feeder | — | 1983-11-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4993838 | Dust monitor | Stewart W. Tresouthick | 1991-02-19 |
| D271434 | Bird feeder | — | 1983-11-15 |