4. Typewriting machines
  5. Including interposed inking device for record-medium
  6. Ribbon-reversing mechanism

William C. McAdams

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Brushless direct current motor having adjustable motor character

Electricity: motive power systems – Limitation of motor load – current – torque or force
Patent

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Electromagnetic actuator

Electrical generator or motor structure – Dynamoelectric – Linear
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Electromagnetic actuator

Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent

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Line printer ribbon reverse mechanism

Typewriting machines – Including interposed inking device for record-medium – Ribbon-reversing mechanism
Patent

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Profile ID: LFUS-PAI-P-345024

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