Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4255647 | Water tank having electric heating element and cathodic corrosion protection | Hans Rickert | 1981-03-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4255647 | Water tank having electric heating element and cathodic corrosion protection | Hans Rickert | 1981-03-10 |