Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865953 | Method for making a stencil with a borax-free, low-dichromate, casein photoresist composition | Peter M. Ritt, Kenneth G. Minnerly | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865953 | Method for making a stencil with a borax-free, low-dichromate, casein photoresist composition | Peter M. Ritt, Kenneth G. Minnerly | 1989-09-12 |