Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366024 | Process for making solar cell base material | Gerhard Ast, Josef Dietl, Dieter Helmreich, Erhard Sirtl | 1982-12-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366024 | Process for making solar cell base material | Gerhard Ast, Josef Dietl, Dieter Helmreich, Erhard Sirtl | 1982-12-28 |