4. Typewriting machines
  5. Key-board or key lever-actuating mechanism
  6. Including means generating a signal for type selecting or...

Bernhard Frolich

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Method of operating a magnetically driven vibrating conveyor and

Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent

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Optically coded keyboard arrangement

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...
Patent

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Typewriter ribbon feed mechanism

Typewriting machines – Including interposed inking device for record-medium – Package for ribbon facilitating mounting of ribbon on...
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Profile ID: LFUS-PAI-P-1292594

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