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Railway-Signal

Description: Patent for a railway signal that is activated when the wheels of a train pass over a switch. Illustrations included.
Date: May 26, 1908
Creator: Harvey, Albert Wadkins
Partner: UNT Libraries Government Documents Department

Combined Disk Harrow and Land-Roller

Description: Patent for a vehicle that may be used as either a harrow or a roller. Illustrations included.
Date: May 19, 1908
Creator: Jackson, Lewis Livingston
Partner: UNT Libraries Government Documents Department
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