Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299185 | Device for warning of impending roof-fall in underground excavations | Mary-Louise Vega, Joel A. Gingras, Sr. | 1981-11-10 |
| 4193109 | Personnel marker device | Mary-Louise Vega, Edward T. Rockwell, Sr. | 1980-03-11 |
| 4186426 | Emergency lighting device | Joel A. Gingras, Sr., Mary-Louise Vega, Michael T. Beachem | 1980-01-29 |
| 4184193 | Multi-purpose lantern | Mary-Louise Vega, Joel A. Gingras, Sr. | 1980-01-15 |