4. Typewriting machines
  5. Typing by other than type-face or type-die
  6. Character formation by impact

Leon C. Johenning, II

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Dot matrix printer/module using print wires having different len

Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent

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Print head, mounting therefor and method of mounting

Printing – Selective or progressive – Bed and platen machines
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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Profile ID: LFUS-PAI-P-584484

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