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Lawn-Trimming Machine

Description: Patent for a lawn-trimming machine designed to trim the edges of lawns or other grass plots. Illustrations included.
Date: June 11, 1907
Creator: Cady, John P.
Partner: UNT Libraries Government Documents Department

Feed-Valve for Air-Brake Systems

Description: Patent for a feed valve for air brake systems, designed to more efficiently refill the air supply of the auxiliary reservoir found in a train. Illustrations included
Date: June 11, 1907
Creator: Wagner, Godwin
Partner: UNT Libraries Government Documents Department
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