Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039232 | Office machine including a multicolor plotting mechanism | Gunter Kerzel | 1991-08-13 |
| 4990007 | Single-run typewriter ribbon cartridge having a reverse winding arrangement | Uwe Schmidt | 1991-02-05 |
| 4813796 | Ribbon cassette having line forming means for typewriters or office machines of similar construction | — | 1989-03-21 |
| 4725155 | Ribbon cartridge for a typewriter or similar office machine | Dieter Hellebrandt | 1988-02-16 |
| 4678352 | Receiving arrangement for a multiple type carrier for an impact printer | Heiner Gerken | 1987-07-07 |
| 4627750 | Receiving arrangement for a multiple type carrier for an impact printer | Heiner Gerken | 1986-12-09 |
| 4386862 | System for introducing function control instructions into a data writing office machine | Heiner Gerken, Herbert Behrens | 1983-06-07 |