Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4322579 | Sound reproduction in a space with an independent sound source | Derk Kleis | 1982-03-30 |
JG
Johannis A. Van Gorsel
Overall (All Time): #4,067,425 of 4,157,543Top 100%
1
Patents All Time