Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4630906 | Blank for eyeglass lenses having ellipse-like edge curves and means and method for selecting | Hans Lahres, Egon Mosch | 1986-12-23 |
| 4505683 | Device for rapid demonstration of the action of phototropic objects | Hermann Schurle, Wolfgang Grimm | 1985-03-19 |