4. Optics: eye examining, vision testing and correcting
  5. Spectacles and eyeglasses
  6. Ophthalmic lenses or blanks

Robert I. Ezrielev

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Combined contact lens

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent

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Prepolymerization of monomer compositions containing diethylene

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
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Time-temperature indicator devices

Chemistry: analytical and immunological testing – Process or composition for sterility or package integrity test
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Profile ID: LFUS-PAI-P-632925

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