Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4302917 | Method and means for fire-sealing a penetration for a conduit | Bo E. Ohlsson, Aage E. Skinstad | 1981-12-01 |
LF
Leif A. Fermvik
Overall (All Time): #4,101,346 of 4,157,543Top 100%
1
Patents All Time