Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888920 | Gutter anti-clogging device | — | 1989-12-26 |
| 4813359 | Single axle railroad truck with frame improvements | Kenneth Smith | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888920 | Gutter anti-clogging device | — | 1989-12-26 |
| 4813359 | Single axle railroad truck with frame improvements | Kenneth Smith | 1989-03-21 |