Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397668 | Process and devices for hardening of glassware by ion exchange | Siegfried Schelinski, Dieter Patzig, Klaus Heinrich | 1983-08-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397668 | Process and devices for hardening of glassware by ion exchange | Siegfried Schelinski, Dieter Patzig, Klaus Heinrich | 1983-08-09 |