| Patents for B41J 31 - Ink ribbons; Renovating or testing ink ribbons (1,930) |
|---|
| 04/18/1978 | US4084682 Inked ribbon guide member with tracking surfaces thereon |
| 01/31/1978 | US4071133 Cassette for dye impregnated ribbon |
| 12/27/1977 | US4064982 Printing ribbon |
| 09/20/1977 | US4048952 Direct ribbon inking by gravure |
| 09/06/1977 | US4046247 Printer ribbon cartridge |
| 08/16/1977 | US4042092 Duplicating method |
| 07/26/1977 | US4037709 Ribbon spool with built-in bifacial re-inker |
| 06/28/1977 | US4031853 Device for applying ink to a ribbon |
| 06/07/1977 | US4028286 Ink suspended in plastisol matrix, polyglycol vehicle |
| 04/19/1977 | US4018955 Process for producing a ring-shaped one-color or multi-color ribbon and a ribbon produced in accordance with this process |
| 04/05/1977 | US4016321 Printer ribbon substrates |
| 03/15/1977 | US4011830 Ribbon inking machine |
| 12/07/1976 | US3995729 Impactless printing apparatus |
| 11/16/1976 | US3991874 Automatic function mechanism for typewriters |
| 11/02/1976 | US3989131 Electrothermal printing unit |
| 10/26/1976 | US3987885 Automatic single and repeat function mechanism for typewriters |
| 10/12/1976 | US3985219 Ribbon cartridge for automatic typewriter function |
| 10/05/1976 | US3983840 Reinking apparatus |
| 10/05/1976 | US3983837 Ribbon re-inking apparatus |
| 09/21/1976 | US3981387 Method for inking preassembled ribbon cartridges |
| 09/07/1976 | US3978965 Ribbon cartridge for automatic typewriter function |
| 08/31/1976 | US3977512 Ribbon cassette and ribbon advance |
| 08/31/1976 | US3977511 Ribbon loading device |
| 08/31/1976 | US3977510 Automatic function mechanism for typewriters |
| 08/24/1976 | US3976184 Ribbon cartridge for dual automatic typewriter function |
| 08/24/1976 | US3976182 Automatic function mechanism for typewriters |
| 08/17/1976 | US3974540 Ribbon cleaning and scanning apparatus |
| 04/20/1976 | US3951253 Typewriter ribbon re-inker |
| 04/06/1976 | US3948382 Data terminal printing assembly |
| 02/10/1976 | US3937178 Film inking system |