Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348302 | Anticorrosive agent stable to hard water | Horst Frohlich | 1982-09-07 |
| 4323476 | Anticorrosive agent for aluminium and aluminium alloys | Horst Lorke | 1982-04-06 |
RH
Rainer Helwerth
Overall (1982): #9,013 of 81,411Top 15%
2
Patents 1982