Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4319971 | Method and means for recovering silver by electrolysis | David Good | 1982-03-16 |
| 4317707 | Portable electrolysis unit for recovery of silver from photographic film | David Good | 1982-03-02 |
| 4287031 | Portable electrolysis unit for recovery of precious metals | David Good | 1981-09-01 |