4. Drying and gas or vapor contact with solids
  5. Material treated by electromagnetic energy
  6. Infrared energy

Herbert A. Wertheim

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Device for heating dyes to tint optical lenses

Drying and gas or vapor contact with solids – Material treated by electromagnetic energy – Infrared energy
Reexamination Certificate

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Device for heating dyes to tint optical lenses and filters

Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Reexamination Certificate

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Device using light emitting diodes for predicting the...

Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Reexamination Certificate

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Method of using a tablet for introducing tint, UV absorbers...

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-2100336

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