Issued Patents 1989
Showing 1–2 of 2 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 Bolla | 1989-10-31 |
| 4870318 | Projector lamp emitting color light | Janos Csiszar, Laszla Feher, Zoltan Losonczi, Gyorgy Szabo | 1989-09-26 |