4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Combined

Daniel E. Fedele

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Actuation mechanism for variable focal length spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses
Patent

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Actuation mechanism for variable focus spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses
Reexamination Certificate

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Apparatus for delaying printer bail closing

Typewriting machines – Sheet or web – Including friction-feed means
Patent

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Display typewriter

Typewriting machines – Displaying typewriter-formed representation of print-line
Patent

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Liquid-filled variable focus lens with band actuator

Optical: systems and elements – Lens – Fluid
Patent

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Profile ID: LFUS-PAI-P-400503

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