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Patent for a waiterless restaurant design with electrically operated waiters.

Date: September 6, 1921

Creator: Paul, Charles P.

Partner: UNT Libraries Government Documents Department

Patent for a Ferris wheel in which the passenger cars rotate horizontally in addition to rotating vertically with the direction of the main wheel.

Date: May 24, 1921

Creator: Lindamood, Roy S.

Partner: UNT Libraries Government Documents Department

Patent for new and useful improvements to Dredge-Pumps. The pump is used to draw up sand and gravel from the bottom of a river.

Date: April 12, 1921

Creator: Stenberg, Anders Gustaf

Partner: UNT Libraries Government Documents Department

Patent for a flushing tank valve that reduces the time it takes to fill the tank with a higher accuracy for shut off levels.

Date: June 21, 1921

Creator: Sweeny, John S.

Partner: UNT Libraries Government Documents Department

Patent for flushing tanks to connect to siphon closets that is improvement vacuum

Date: June 21, 1921

Creator: Sweeny, John S.

Partner: UNT Libraries Government Documents Department

Patent for a new garment hanger with supported arms that can be folded for storage, including illustrations.

Date: April 5, 1921

Creator: Morton, John R.

Partner: UNT Libraries Government Documents Department