Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350206 | Fire extinguishing foam concentrate and its application | Bernd Hoffmann, Siegfried Jung | 1982-09-21 |
HS
Hans-Joachim Semmler
Overall (1982): #60,560 of 81,411Top 75%
1
Patents 1982