Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224767 | Fire stop safety astragal | John J. Jecmen | 1980-09-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224767 | Fire stop safety astragal | John J. Jecmen | 1980-09-30 |