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Indexing Device.

Description: Patent for an indexer of paper documents in book form. It is made to open along the center with visible subject headings.
Date: January 18, 1921
Creator: Moran, Stanley C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Molding Machine

Description: Patent for a clay molding machine that has more aprons to create more uniform molds as well as different size belts for varies mold sizes.
Date: July 18, 1922
Creator: Pokorny, James T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump-Valve

Description: Patent for improvements in a pump valve. Designed to be used in pumping wells, particularly oil wells (Line 11).
Date: January 18, 1921
Creator: Sandlin, James W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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