Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887659 | High speed folding door | — | 1989-12-19 |
| 4805362 | Hook seal for loading dock shelter | John A. Frommelt | 1989-02-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887659 | High speed folding door | — | 1989-12-19 |
| 4805362 | Hook seal for loading dock shelter | John A. Frommelt | 1989-02-21 |