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Gate Closer

Description: Patent for a gate closer. This invention uses a counter weight to automatically closes a gate or door. Illustration included.
Date: June 21, 1904
Creator: Rhodes, Efford B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gas-Engine

Description: Patent for a gas engine designed with "both reciprocating and rotary motor elements" (line 10) and to minimize back pressure. Illustrations included.
Date: February 23, 1909
Creator: Patterson, John E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Vibrator

Description: Patent for a vibrator to be used for treating diseases and massage treatment.
Date: December 31, 1907
Creator: Swindell, John W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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