Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338996 | Combined rolling shutter and ventilating box | — | 1982-07-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338996 | Combined rolling shutter and ventilating box | — | 1982-07-13 |