Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889216 | Clutch arrangement, mainly for driving the tape-spindle of magnetic tape recorder and/or play-back unit | Gyorgy Neumann | 1989-12-26 |
| 4877199 | Tape-conveying system for forward and backward playing magnetic tape recorder and/or play-back unit | Gyorgy Neumann, Marta Kovacs, Andras Strompl | 1989-10-31 |
| 4865730 | Apparatus for the removal of ferromagnetic materials from liquids, organic or inorganic compounds respectively mixtures--in particular fuels--, for treating with magnetic field and reduction of surfacial stresses | Bela Lam, Laszlo Kalman, Sandor Marso | 1989-09-12 |