Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481235 | Apparatus and method for manufacturing tape-shaped silicon bodies for solar cells | Helmut Foell, Bernhard Freienstein, Karl Geim, Josef Grabmaier | 1984-11-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481235 | Apparatus and method for manufacturing tape-shaped silicon bodies for solar cells | Helmut Foell, Bernhard Freienstein, Karl Geim, Josef Grabmaier | 1984-11-06 |