Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8116499 | Microphone adaptor for altering the geometry of a microphone without altering its frequency response characteristics | John T. Grant | 2012-02-14 |
| 4519143 | Sheet metal bending position marker system | — | 1985-05-28 |