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Apparatus for Testing Errors of Refraction

Description: Patent for an eye testing device that has a movable lens, a measuring device for correction, and two different cards with test type on them which are fed into the machine during testing for astigmatism and myopia, presbyopia, and hyperopia to determine the level of correction needed in glasses.
Date: July 2, 1907
Creator: Bahn, Gustavus Adolphus
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Loose-Leaf Binder.

Description: Patent for a loose-leaf binder for medicine prescriptions, which is easier to open and close than previous ones.
Date: July 23, 1907
Creator: Perkins, John Hardeman
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Uterine Supporter.

Description: Patent for a uterine supporter which has a soft and flexible bulb supporting the uterus and a more rigid opposite end keeping the bulb in place. The device attaches to a cord on the waistband.
Date: July 16, 1907
Creator: Baird, William T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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