Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350206 | Fire extinguishing foam concentrate and its application | Siegfried Jung, Hans-Joachim Semmler | 1982-09-21 |
BH
Bernd Hoffmann
Overall (1982): #74,458 of 81,411Top 95%
1
Patents 1982