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

Howard J. Brown

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High-strength septage biological treatment system

Liquid purification or separation – Processes – Treatment by living organism
Patent

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Multi-focal contact lens

Abrading – Abrading process
Patent

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Multi-focal contact lens

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

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Profile ID: LFUS-PAI-P-222548

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