Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481660 | Apparatus for driving one or more transducer units | Stephanus H. De Koning | 1984-11-06 |
WS
Willem A. L. Smallenberg
Overall (All Time): #4,043,856 of 4,157,543Top 100%
1
Patents All Time