4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. Processes of preparing a desired or intentional composition...

Martin Rickwood

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Bridged spiroxazine photochromic compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
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Photo reactive spiro-benzoxazine compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
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Photochromic articles

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

Compositions – Light transmission modifying compositions – Displaying color change
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Photochromic compounds

Compositions – Light transmission modifying compositions – Displaying color change
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Profile ID: LFUS-PAI-P-556600

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