Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332241 | Solar energy collector panel | Rolf Dalstein, Johann Spies, Hans-Dieter Greif, Jurgen Unbescheid, Hans-Werner Nowoczyn | 1982-06-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332241 | Solar energy collector panel | Rolf Dalstein, Johann Spies, Hans-Dieter Greif, Jurgen Unbescheid, Hans-Werner Nowoczyn | 1982-06-01 |