Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357214 | Methods and apparatus for microphone preamplification | Lawrence F. Heyl | 1994-10-18 |
| 5309565 | Dsack clamp | Robert J. Hollyer | 1994-05-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5357214 | Methods and apparatus for microphone preamplification | Lawrence F. Heyl | 1994-10-18 |
| 5309565 | Dsack clamp | Robert J. Hollyer | 1994-05-03 |