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Unidirectional ribbon drive mechanism

Typewriting machines – Including interposed inking device for record-medium – Ribbon-feeding mechanism
Patent

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Unifilled tape cassette

Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent

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Unitary tape-ribbon cartridge for lettering system

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal end of ribbon sensing system

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal inked ribbon assembly for printing apparatus

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Reexamination Certificate

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Universal ribbon cartridge

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal ribbon cartridge

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal ribbon cartridge

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal ribbon cartridge

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
Patent

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Universal ribbon cartridge for high-speed printers

Typewriting machines – Including interposed inking device for record-medium – Endless ribbon or cartridge therefor
Patent

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Universal ribbon re-inking apparatus

Typewriting machines – Including interposed inking device for record-medium – Renovation of used ribbon
Patent

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Universal ribbon spool for typewriters and other machines

Typewriting machines – Including interposed inking device for record-medium – Ribbon spool or mount therefor
Patent

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Unwinding apparatus for unwinding tape-like sheet member

Typewriting machines – Including interposed inking device for record-medium – Ribbon-feeding mechanism
Patent

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