Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8593929 | Moving coil type pick up cartridge assembly | — | 2013-11-26 |
| 7944803 | Tone arm assembly | — | 2011-05-17 |
| 6565491 | Inertial exercise apparatus and method | Michael A. Thompson | 2003-05-20 |
| 4248664 | Fibrous sheet materials | Alan W. Atkinson, Richard CLUCAS, Robert A. Lancaster | 1981-02-03 |