Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4971669 | Process and device for the continuous vaporiation of volatile active compounds | Wolfgang Wrede | 1990-11-20 |
| 4352247 | Square level for drawing angles and parallels | — | 1982-10-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4971669 | Process and device for the continuous vaporiation of volatile active compounds | Wolfgang Wrede | 1990-11-20 |
| 4352247 | Square level for drawing angles and parallels | — | 1982-10-05 |