Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709523 | Insulation batt with press-on facing flanges | Donald J. Algrim, Richard F. Hayden | 1987-12-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4709523 | Insulation batt with press-on facing flanges | Donald J. Algrim, Richard F. Hayden | 1987-12-01 |