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Razor-Stropping Device

Description: Patent for a razor sharpening device in which the razor blade may be held on an incline for efficient sharpening.
Date: April 15, 1913
Creator: Greenwood, Charley E.
Partner: UNT Libraries Government Documents Department

Device for Making Vessels Invisible.

Description: Patent for improvements in "air and water craft" (line 13) invisible including illustrations. These improvements include invisibility through "plurality of plates or sections" (lines 18-19) and diffuse light, disguising the vessels.
Date: July 15, 1919
Creator: Chaddick, Mark
Partner: UNT Libraries Government Documents Department

Fire-Engine.

Description: Patent for improvements to fire engines, designed for rural use and places where water may be scarce by the inclusion of storage tank and a pump.
Date: November 15, 1910
Creator: Minnis, Henry M.
Partner: UNT Libraries Government Documents Department
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