Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323280 | Remote controlled high wall coal mining system | John B. Lansberry, Joseph D. Dury, Jr. | 1982-04-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323280 | Remote controlled high wall coal mining system | John B. Lansberry, Joseph D. Dury, Jr. | 1982-04-06 |