Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806306 | Attachments in the field of dental technology made of noble metal alloys with melting ranges above 1500 degree celsius | Werner Groll, Harry Schiwiora | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806306 | Attachments in the field of dental technology made of noble metal alloys with melting ranges above 1500 degree celsius | Werner Groll, Harry Schiwiora | 1989-02-21 |