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

Optical Sciences Group, Inc.

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Metal replication of Glass dies by electroforming

Chemistry: electrical and wave energy – Processes and products
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Orthoptic therapy bar with prisms

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Orthopedic or chiropractic
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Visual acuity tester

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

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