Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4407875 | Tableware and decorative articles with a surface of silver | Hans Schlegel, Rolf Mayer | 1983-10-04 |
| 4297175 | Process for partially electroplating flat silver | Hans Schlegel | 1981-10-27 |