Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991222 | Sound reproducer | — | 1991-02-05 |
| 4202069 | Window cleaning apparatus | Gunther Tolle | 1980-05-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991222 | Sound reproducer | — | 1991-02-05 |
| 4202069 | Window cleaning apparatus | Gunther Tolle | 1980-05-13 |