4. Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
  5. Hinge
  6. Eyeglass hinge

Karl Beyer

Inventor

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Bearing screw and its use as a hinge-pin in spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Combined
Patent

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Elastic hinge for eyeglasses

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Eyeglass hinge
Patent

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Hinge for spectacles

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Connectors
Patent

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Hinge for spectacles

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Sash balances – Spring
Patent

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Profile ID: LFUS-PAI-P-1346962

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