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Tachistoscope
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Light projector attachment
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Vision classifier instrument
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Reading pacer apparatus
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Instrument for testing lateral visual ability
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Device for supporting transparent stereoscopic slides
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Stereoscopic rotator for rotating stereoscopic pictures
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Transparent slide for use in binocular vision training
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Vision target assembly for telebinocular instruments
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Triple slide holder device for stereoscopic slides
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Ophthalmic telebinocular with ortho trainer
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Stand
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Telebinocular instrument for conducting vision tests in industrial occupations
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Card for testing the color sense of the human eye
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Target for testing the resolving power of the human eye
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Optical instrument
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Stereoscopical instrument
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Automatic orthophoric split slide holder
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Attachment for picture projecting apparatus
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US2279904A
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Stereoscope
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