Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200610 | Gas-producing device | Derwent Swaine, Brian M. Lewin | 1980-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200610 | Gas-producing device | Derwent Swaine, Brian M. Lewin | 1980-04-29 |