4. Advancing material of indeterminate length
  5. Means to engage longitudinally spaced modifications in material
  6. Pins on flexible belt or chain

Frederik T. van Namen

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Actuator for active vibration control

Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent

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Bi-directional belt drive, print head mounting means and printin

Typewriting machines – Carriage or carriage-moving or movement-regulating mechanism – Carriage-feed mechanism
Patent

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Bistable electro-magnetic mechanical actuator

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

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Bistable long-stroke electro-magnetic mechanical actuator

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

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Electrically-tunable vibration absorbers

Brakes – Inertia of damping mass dissipates motion
Patent

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Profile ID: LFUS-PAI-P-1086080

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