Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330315 | Method and apparatus for preheating pulverous materials prior to their introduction into a melting furnace | Raymond S. Richards, Robert R. Rough, Sr. | 1982-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330315 | Method and apparatus for preheating pulverous materials prior to their introduction into a melting furnace | Raymond S. Richards, Robert R. Rough, Sr. | 1982-05-18 |