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GB1260937A
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A binocular microscope arrangement
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GB1154639A
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Beam Divider for Opthalmometers.
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GB1174449A
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Apparatus for Measuring Astigmatism.
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GB1113383A
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Bridge for binoculars
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GB1148186A
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Optical objective
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GB1111356A
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An adjustable holder for mirrors and other optical elements
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GB1130456A
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A four component, six lens, objective
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GB1092003A
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Telephoto objective for infra-red rays
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GB1147461A
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Ophthalmoscope
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GB1100148A
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Specifying bifocal lenses for spectacles
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GB1103704A
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Modified petzval object lens
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GB1132273A
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An ophthalmoscope
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GB1069407A
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Eye-testing apparatus
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GB947359A
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Indicating means for phoropters
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GB946463A
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Spectacle hinge construction
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GB838194A
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Improvements in spectacle hinges
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