Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564227 | Flanged duct joint utilizing snap-in corner pieces | — | 1986-01-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4564227 | Flanged duct joint utilizing snap-in corner pieces | — | 1986-01-14 |