Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4387786 | Anechoic chamber arrangement | James R. Hunter | 1983-06-14 |
| 4237340 | Crossover network for optimizing efficiency and improving response of loudspeaker system | — | 1980-12-02 |
| 4210223 | Low frequency folded exponential horn loudspeaker apparatus with bifurcated sound path | Gary C. Gillum | 1980-07-01 |