Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274712 | High resistivity inner shields for audio cables and circuits | David Lindsay | 1993-12-28 |
| 5099518 | Electrical conductor of high magnetic permeability material for audio circuits | David Lindsay | 1992-03-24 |
| 4964738 | Electrical conductor of high magnetic permeability material for audio circuits | David Lindsay | 1990-10-23 |