4. Typewriting machines
  5. Including interposed inking device for record-medium
  6. Endless ribbon or cartridge therefor

Grafton Limited

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Drive mechanisms for inked ribbon cassettes

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