Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4185540 | Positive-displacement machine | Gerhard Nonnenmacher, Walter Robeller, Karl Veil | 1980-01-29 |
RS
Roland Steimann
Overall (All Time): #4,105,101 of 4,157,543Top 100%
1
Patents All Time