Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4230781 | Method for making etch-resistant stencil with dichromate-sensitized alkali-caseinate coating | Joseph J. Piascinski | 1980-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4230781 | Method for making etch-resistant stencil with dichromate-sensitized alkali-caseinate coating | Joseph J. Piascinski | 1980-10-28 |