Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881894 | Self-igniting portable torch assembly | David S. Chapin, Al Burgin | 1989-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881894 | Self-igniting portable torch assembly | David S. Chapin, Al Burgin | 1989-11-21 |