Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674076 | Hand-held sound generating device | Zeb Billings, Michael Hennig, Ralph Dyck | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674076 | Hand-held sound generating device | Zeb Billings, Michael Hennig, Ralph Dyck | 1997-10-07 |