Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224513 | Apparatus for the on-line measurement of the opacity of a paper sheet | Erik B. Dahlin | 1980-09-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224513 | Apparatus for the on-line measurement of the opacity of a paper sheet | Erik B. Dahlin | 1980-09-23 |