Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078677 | Electroacoustic transducer with improved diaphragm attachment | Onno Geschiere, Paul Christiaan van Hal, Engbert Wilmink | 2000-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078677 | Electroacoustic transducer with improved diaphragm attachment | Onno Geschiere, Paul Christiaan van Hal, Engbert Wilmink | 2000-06-20 |