Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854172 | Method and apparatus for measurement of density profiles in wood composites, using acoustic emission | David Dornfeld | 1989-08-08 |
| 4831880 | Method and apparatus for determining vertical density profiles in wood composites, using acoustic emission | David Dornfeld | 1989-05-23 |