Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4489518 | Sealing arrangement for tiltable and pivotal windows | Knud E. Nissen | 1984-12-25 |
| 4359805 | Window sash hinge | — | 1982-11-23 |
| 4332663 | Dehumidifying device | — | 1982-06-01 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4489518 | Sealing arrangement for tiltable and pivotal windows | Knud E. Nissen | 1984-12-25 |
| 4359805 | Window sash hinge | — | 1982-11-23 |
| 4332663 | Dehumidifying device | — | 1982-06-01 |