4. Typewriting machines
  5. Including interposed inking device for record-medium
  6. Means auxiliary to ribbon mechanism

James A. Schwerin

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Printer-based interface with removable digital storage media

Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate

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Ribbon fault detection system

Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
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Profile ID: LFUS-PAI-P-624224

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