Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4539252 | Variable density board having improved thermal and acoustical properties and method and apparatus for producing same | — | 1985-09-03 |
| 4430286 | Variable density board having improved thermal and acoustical properties and method and apparatus for producing same | — | 1984-02-07 |