Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442879 | Counterbalanced window operator | — | 1995-08-22 |
| 5113922 | Venetian blind assembly for a window in an inclined roof | Svend A. Sonderby | 1992-05-19 |
| 4446597 | Hinge device for inclined tilting type windows with external cover rails | Bendt Dantzer-Sorensen | 1984-05-08 |
| 4429494 | Window, especially for installation in an inclined roof | Klaus Kornerup | 1984-02-07 |