Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160381 | Method for forming artificially and rapidly patina on copper, products thereof and solutions therefor | — | 1992-11-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160381 | Method for forming artificially and rapidly patina on copper, products thereof and solutions therefor | — | 1992-11-03 |