Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338160 | Process for drying and/or preheating coal | Roger M. Puff | 1982-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338160 | Process for drying and/or preheating coal | Roger M. Puff | 1982-07-06 |