Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800680 | Cord guide system for sash balance | Norman R. Westfall, Patrick E. Milligan, John I. Habbersett | 1989-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800680 | Cord guide system for sash balance | Norman R. Westfall, Patrick E. Milligan, John I. Habbersett | 1989-01-31 |