Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312724 | Method for the recovery of lead from materials containing lead sulfide | Roland Kammel | 1982-01-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312724 | Method for the recovery of lead from materials containing lead sulfide | Roland Kammel | 1982-01-26 |