Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275850 | Plate-type paint grinding machine and its use in pigment testing | Bruno Knapstein | 1981-06-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4275850 | Plate-type paint grinding machine and its use in pigment testing | Bruno Knapstein | 1981-06-30 |