4. Stock material or miscellaneous articles
  5. Circular sheet or circular blank
  6. Recording medium or carrier

Robert Allen Pyles

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Optical quality polycarbonates

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent

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Process for preparing a photochromic lens

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

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Profile ID: LFUS-PAI-P-807600

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