Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876790 | Magnetic information recording and/or reading head with increased wear-resistant properties and a method for manufacturing the same | Istvan Grimm, Sandor Stenczinger, Istvan Csanyi | 1989-10-31 |