Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5784840 | Adjustable window construction | — | 1998-07-28 |
| 4949425 | Spring loaded block and tackle window sash balance assembly | Frederick P. Strobl, Jr. | 1990-08-21 |
| 4763447 | Torque actuated brake mechanism for spring balanced window sash | Garry P. Haltof | 1988-08-16 |