4. Printing and office machinery
  5. Typewriter or calculator

Dan W. Matthias

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Character print wheel with drive elements

Typewriting machines – Including type-set-assemblage mounted on carrier and... – Including type-faces movable relative to type-face-carrier
Patent

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Flexible ribbon guide means

Typewriting machines – Including interposed inking device for record-medium – Means auxiliary to ribbon mechanism
Patent

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High performance stepper motor

Electrical generator or motor structure – Dynamoelectric – Linear
Patent

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High performance stepper motor

Electrical generator or motor structure – Dynamoelectric – Rotary
Patent

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Linear drive for a printing apparatus

Typewriting machines – Including type-set-assemblage mounted on carrier and... – Including type-faces movable relative to type-face-carrier
Patent

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Profile ID: LFUS-PAI-P-506256

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