Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917992 | Apparatus for the loosening of wallpaper | Guido Zimmermann | 1999-06-29 |
| 5867909 | Branch shears tool | Thomas Jeltsch | 1999-02-09 |
| 5075809 | Rotary magnetic head tape-scanning device with heads protected from cross-talk by mounting on a head carrier and by annular shielding of a portion of the head projecting from the head carrier | Richard Heinz, Hartmut Willmann | 1991-12-24 |
| 5057948 | Recording of digital signals on d.c.-erased magnetic tape | — | 1991-10-15 |
| 5036418 | Magnetic tape recorder with shielding device for contact-free signal transfer between components moved relative to one another | Hartmut Willmann, Ludwig Dittmann, Richard Heinz | 1991-07-30 |
| 4973123 | Electro-optical rotary coupling suitable for tape scanners | — | 1990-11-27 |