Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213829 | Retractable hood for transfer of coke | Donald L. Friend, John A. Grosko | 1980-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213829 | Retractable hood for transfer of coke | Donald L. Friend, John A. Grosko | 1980-07-22 |