4. Typewriting machines
  5. Stenographic typewriter
  6. Electrically powered

Richard A. Michals

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Digital data recorder

Dynamic magnetic information storage or retrieval – Manual input recording
Patent

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Shorthand machine having electric platen advancement

Typewriting machines – Stenographic typewriter – Electrically powered
Patent

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Shorthand machine having electric platen advancement

Typewriting machines – Stenographic typewriter – Electrically powered
Patent

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Profile ID: LFUS-PAI-P-223598

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