4. Plastic and nonmetallic article shaping or treating: processes
  5. Optical article shaping or treating
  6. Including step of mold making

Carl Crowe

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Clear axis, segmented multifocal ophthalmic lens

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
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Method of making a clear axis, segmented multifocal ophthalmic l

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Including step of mold making
Patent

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