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US2737759A
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Machines for generating curved surfaces
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US2821050A
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Edge grinding machine for lenses
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US2793741A
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Spectacle case
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US2748654A
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Spectacle frame
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US2748655A
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Spectacle frames
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GB678256A
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Improvements in or relating to a lens chuck
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US2618106A
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Booster for lens edge grinding machines
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US2603922A
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Lens blocking device
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US2589488A
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Lens grinding method and machine
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US2554386A
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Spectacle frame
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US2554070A
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Method of finishing lenses
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US2474119A
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Plastic brace bar spectacle with pivoting lens connections
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US2436606A
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Spectacle lens mounting
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US2433483A
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Spectacle case
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US2395376A
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Goggle lens cutting machine
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US2376487A
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Spectacle case
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US2339708A
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Control mechanism
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US2319417A
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Lens grinding and polishing machine
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US2357267A
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Top arm spectacles
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US2332261A
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Method for securing lenses in ophthalmic mountings
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