4. Photography and optical equipment
  5. Optical article not elsewhere specified
  6. Lens or objective

Younger Manufacturing Company

Corporate Assignee

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Corporate Assignee

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Calibration instrument

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent

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Eye glass frame

Photography and optical equipment – Optical article not elsewhere specified – Lens or objective
Patent

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Lens calibration gauge

Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent

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Ophthalmic progressive power lens and method of making same

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

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Ophthalmic progressive power lens and method of making same

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

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Profile ID: LFUS-PAI-P-470749

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