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Film Developing, Fixing, and Washing Apparatus

Description: Patent for a film developing, fixing, and washing apparatus with an improved method of rolling the film around the coil in the washing tank.
Date: July 2, 1912
Creator: Nyc, Frederick Francis
Partner: UNT Libraries Government Documents Department

Means for Lowering or Raising Drill Disks or Plows.

Description: Patent for a means of raising and lowering drill disks on plows to allow the machine to travel and not get tangled in obstructions such as underbrush or rocks.
Date: February 2, 1909
Creator: Burks, William Edward
Partner: UNT Libraries Government Documents Department
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