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Heater.

Description: Patent for an under-the-bathtub heater.
Date: September 21, 1920
Creator: Bowlus, Charles F.
Partner: UNT Libraries Government Documents Department

Foldable Landing Gear for Aeroplanes

Description: Patent for foldable landing gear for airplanes. This landing gear is designed to be folded into the body of the plane, by the pilot.
Date: September 21, 1920
Creator: McCarroll, Frank
Partner: UNT Libraries Government Documents Department

Cotton-Cleaning Apparatus.

Description: Patent for new improvements in a cotton cleaning apparatus, designed to attach to an unloading device and clean the cotton before passing through a drum separator. Includes illustrations.
Date: February 21, 1920
Creator: Williams, French B. & Adams, Benjamin F.
Partner: UNT Libraries Government Documents Department

Huller

Description: Patent for hullers for removing hulls of shells for seeds or other similar products. The invention "is of especial utility in hullers for cottons seeds." However, it is noted that a cotton seed huller is only one adaptation of the invention.
Date: December 21, 1920
Creator: Vardell, Arthur A. & Highland Gee Vardell
Partner: UNT Libraries Government Documents Department
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