Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430298 | Microphone mounting structure for a sound amplifying respirator and/or bubble suit | Lonnie Joe Kettl | 2002-08-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430298 | Microphone mounting structure for a sound amplifying respirator and/or bubble suit | Lonnie Joe Kettl | 2002-08-06 |