Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885501 | Blackening of non iron-based flat tensioned foil shadow masks | — | 1989-12-05 |
| 4854906 | Material, and assemblies for tensioned foil shadow masks | Michael Livshultz | 1989-08-08 |