Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286792 | Self-replenishing seal for the gas offtake piping of a coke oven and sealing method | Robert E. Hagedorn, Alphonse T. Lobue | 1981-09-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4286792 | Self-replenishing seal for the gas offtake piping of a coke oven and sealing method | Robert E. Hagedorn, Alphonse T. Lobue | 1981-09-01 |