Typewriter, printer or the like and ribbon cassette therefor
Typewriting ribbon with adhesively correctable print
Typing ribbon cartridge with blocking element
Unidirectional ribbon drive mechanism
Unifilled tape cassette
Unitary tape-ribbon cartridge for lettering system
Universal end of ribbon sensing system
Universal inked ribbon assembly for printing apparatus
Universal ribbon cartridge
Universal ribbon cartridge
Universal ribbon cartridge
Universal ribbon cartridge
Universal ribbon cartridge for high-speed printers
Universal ribbon re-inking apparatus
Universal ribbon spool for typewriters and other machines
Unwinding apparatus for unwinding tape-like sheet member
Vacuum buffered ribbon transport system
Wear-activated ribbon reinker
Winding core
Winding member for winding an ink sheet, housing member for hous