Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615271 | Method and apparatus for activating switches in response to different acoustic signals | Carlile R. Stevens | 1997-03-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615271 | Method and apparatus for activating switches in response to different acoustic signals | Carlile R. Stevens | 1997-03-25 |