Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970859 | Exhaust gas deflector for truck exhaust stacks | Robert Krah | 1990-11-20 |
| 4903484 | Exhaust dissipator and deflector | Robert Krah | 1990-02-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970859 | Exhaust gas deflector for truck exhaust stacks | Robert Krah | 1990-11-20 |
| 4903484 | Exhaust dissipator and deflector | Robert Krah | 1990-02-27 |